New Early and Middle Pleistocene of Northern Eurasia · 2019. 3. 13. · Encyclopedia of Quaternary...
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http://www.elsevier.com/locate/permissionusematerial Vislobokova I., and Tesakov A. (2013) Early and Middle Pleistocene of Northern Eurasia. In: Elias
S.A. (ed.) The Encyclopedia of Quaternary Science, vol. 4, pp. 605-614. Amsterdam: Elsevier.
© 2013 Elsevier Inc. All rights reserved.
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Author's personal copy
Early and Middle Pleistocene of Northern EurasiaI Vislobokova, Paleontological Institute of the Russian Academy of Sciences, Moscow, RussiaA Tesakov, Geological Institute of the Russian Academy of Sciences, Moscow, Russia
ã 2013 Elsevier B.V. All rights reserved.
Introduction
The best represented vertebrate records in the early and middle
Pleistocene of Northern Eurasia are mammalian and they are
summarized in this article. The data from Russia and neigh-
boring countries of the former USSR are very important for the
understanding of the history of Late Cenozoic biota. The terri-
tory was a prime area of origin and evolution of taxa and of
dispersals of some mammals to Western Europe, Africa, North
America and China, and vice versa. The configuration of Asia
was close to that of the present day but differed through the
periodic existence of the Bering land bridge, connecting Siberia
and Alaska. The reorganization of the biota went through
climatic and environmental changes; its main trends and
phases are very pronounced there.
The key stages in the history of Pleistocene mammals in this
territory were first recorded by Gromov (1948) who defined
the faunal assemblages for Eastern Europe and named them by
their type localities or regions. Regional complexes were later
defined in the Caucasus, Siberia, Transbaikalia, and Central
Asia. The data on the ages of the assemblages and their com-
positions were considerably enriched thanks to many subse-
quent researchers and new discoveries. In addition to large
mammals, a detailed biochronology based on small mammals
has appeared in the last decades. At present, early and middle
Pleistocene mammal remains are known from many localities
of Northern Eurasia. The age of the localities has been estab-
lished by a combination of geological and paleontological
methods (including the first appearance of index taxa, as well
as the evolutionary levels of dominant forms and of some
phyletic lineages), paleoclimatic data and correlation. Paleo-
magnetic data also help to distinguish more precisely the age of
early Pleistocene sites, whereas the glacial–interglacial succes-
sion provides further important markers for age determination.
The beginning of the Pleistocene is currently set at �2.6 Ma(the Gauss–Matuyama magnetic reversal), the early–middle
Pleistocene boundary at �0.78 Ma (the Brunhes–Matuyamamagnetic reversal), and the middle–late Pleistocene boundary
at 0.126 Ma, according to the International Commission on
Stratigraphy in 2009. However, the Geological Surveys of
Russia and Ukraine have until recently retained the Pliocene–
Pleistocene boundary in its former position at 1.8 Ma. In 2012
the Russian Stratigraphic Committee voted to lower the base of
the Quaternary to 2.58 Ma. The position of the lower boundary
of the Pleistocene and its divisions have thus been repeatedly
changed over the last decades and it must be appreciated that
the published names of particular stratigraphical units often
refer to different time slices.
The early and middle Pleistocene in Northern Eurasia
currently include the following mammal assemblages:
Khaprovian, 2.6–2.2 Ma; Psekupsian, 2.2–1.2 Ma; Tamanian,
1.2–0.8 Ma; Tiraspolian, 0.8–0.4 Ma; Singilian and Khasarian,
0.4–0.126 Ma.
Encyclopedia of Quaternary Scien
Mammal Assemblages of Northern Eurasia
Early Pleistocene: Gelasian, Middle Villafranchian, LateVillanyian, MN17
The Khaprovian (Khapry) mammal assemblage and itsanalogsThis stage is well documented in the northern Black Sea region,
peri-Azov area, Siberia, and Central Asia. The mammal com-
munities superficially resembled those of modern Africa or
southern Asia by the presence of proboscideans, equids, rhi-
noceroses, giraffids, and various antelopes, but differed
considerably from them in species composition. These assem-
blages are characterized by the first appearance and subseq-
uent wide distribution of the elephant Archidiskodon gromovi
(¼ A. meridionalis gromovi in Titov, 2008, ¼ Mammuthus gro-movi of Lister and Sher, 2001). In contrast to Russian paleon-
tologists, most researchers refer this species to the genus
Mammuthus, mainly based on the tooth structure (Lister and
Sher, 2001), although Archidiskodon is retained here. Other
features of the fauna include the presence of the bear Ursus
etruscus and the rhinoceros Stephanorhinus sp., the rapid
diversification and wide distribution of stenonid horses,
the presence of diverse canids (Eucyon, Nyctereutes, Canis), two
saber-toothed cats Homotherium crenatidens and Megantereon
cultridens, the camel Paracamelus, the large-sized comb-antlered
deer Eucladoceros and the elk (¼ moose) Libralces, and otherextinct forms. In Northern Eurasia, there were three paleozoo-
geographic subareas: European-Siberian, Mediterranean, and
Central Asian (Vangengeim and Pevzner, 1991; Vislobokova
et al., 1995) (Figure 1). The global cooling witnessed at about
2.6 Ma (indicated in the territory by the glaciations of the
Caucasus and Pamir, the most ancient loess formation in
Tadjikistan, Uzbekistan, etc.) caused a decrease in humidity
in temperate latitudes and in Central Asia (Dodonov, 2002),
where animals adapted to open woodlands and grasslands
became dominant. Some taxa have North American ancestry,
immigrating during periods of low sea level prior to the start
of the Pleistocene, such as the camels, Hipparion and Eucyon
in the late Miocene, and Equus, Canis, and Megantereon in the
Pliocene (Vislobokova et al., 2003). A number of thermophilous
herbivores (mastodons, giraffids, and others), typical of Pliocene
times, were gradually replaced by forms adapted to cooler cli-
matic conditions and possessing more advanced herbivorous
adaptations. The data on herbivorous taxa (elephants, horses,
ruminant Artiodactyla, voles, etc.) are of great value for biochro-
nology and paleoenvironmental reconstruction because their
tooth structure yields clearly recognizable signals inwear patterns,
hypsodonty, etc. The increase in diversity of herbivore taxa was
accompanied by considerable changes in the carnivore guild.
At this time, an extensive European-Siberian part of the
Palearctic was inhabited by the elephant Archidiskodon gromovi,
the rhinoceros Elasmotherium, and large Equus livenzovensis
and small Equus sp., together with other animals adapted to
605
ce, (2013), vol. 4, pp. 605-614
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60� 70� 80� 80� 70� 60�
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Figure 1 Early Pleistocene paleozoogeographic subareas and main localities: (1) European-Siberian subarea; (2) Central Asian subarea;(3) Mediterranean subarea.
606 VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia
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savanna-like conditions (the wolves of the Canis etruscus group,
the hyena Pliocrocuta, the saber-toothed cat Homotherium cre-
natidens, the cheetah Acinonyx, the camel Paracamelus, the an-
telope Gazellospira, the bison-like Leptobos, and others), along
with forest and ecotonal animals (the bear Ursus etruscus and
the deer Eucladoceros and Libralces). Most of these mammals
were found in common with those from the Middle Villafran-
chian faunas of Western Europe (Kahlke et al., 2011; Palombo
et al., 2006). Early Villafranchian elements (the mastodon
Anancus arvernensis, the archaic horse Hipparion, and giraffids)
became very rare. Among the small mammals, the bank voles
Clethrionomys made their first appearance, the water vole Mim-
omys polonicus was replaced by M. pliocaenicus in the Northern
Black Sea area, and the pikas Pliolagomys and Ochotona and
jerboas Allactaga, more typical of Asian faunas, were present.
Fossil remains of Archidiskodon gromovi, the main indicator
species of the Khaprovian mammal assemblage, have been
found in a number of localities in the European part of
Russia (Khapry, Liventzovka, and others), in the Ukraine
(Zhevakhova Gora), in the south of Western Siberia (Podpusk-
Lebyazh’e), and inCentral Asia (Adyrgan, Kuruksay) (Bajgusheva,
1971; Garutt and Bajgusheva, 1981; Vangengeim et al.,
1988; Vislobokova, 1996, 2005; and others). A. gromovi
has also been found in Italy (Montopoli) (Gliozzi et al.,
1997).
Remains of other members of the Khaprovian assemblage
are recorded from many European–Russian sites along the
northern coast of the Sea of Azov and the right bank of the
Encyclopedia of Quaternary Scienc
Don River near Rostov-on-Don and Taganrog. They come from
the lower part of the Khapry alluvium recorded in sand pits
and natural outcrops. The large mammals were represented by
Anancus arvernensis alexeevae, the horses Hipparion moritorum,
Equus (Allohippus) livenzovensis, and a small Equus sp., the rhi-
noceroses Stephanorhinus ex gr. megarhinus-kirchbergensis and
Elasmotherium chaprovicum (¼ E. cf. caucasicum), the wild boarSus strozzi, the camels Paracamelus alutensis and Paracamelus cf.
gigas, the deer Cervus (Rusa) philisi, Eucladoceros cf. dicranios,
Arvernoceros sp., and Libralces gallicus, the giraffid Palaeotragus
(Yuorlovia) priasovicus, and the bovids Leptobos sp., Gazellospira
gromovae, Tragelaphini gen. indet., Gazella cf. subgutturosa, and
others (Alexeeva, 1977; Bajgusheva, 1971; Bajgusheva et al.,
2001; Gromov, 1948; Titov, 2008; and others) (Figure 2). The
Khapry carnivores included the raccoon-dog Nyctereutes mega-
mastoides, Canis sp. (C. cf. senezensis : Sotnikova et al., 2002),
the mustelids Lutra sp. and Pannonictis nesti, the medium-sized
hyena Pliocrocuta perrieri and the dominant larger-sized
short-faced hyena Pachycrocuta brevirostris, the felids Lynx issio-
dorensis, the saber-toothed catHomotherium crenatidens, and the
cheetah Acinonys pardinensis. Most of these animals were in-
habitants of open savannah-like landscapes, with a part of the
fauna adapted more to forested or ecotonal zones (mustelids,
lynx, wild boar, and deer). Among the small mammals, the
archaic lagurine Borsodia praehungarica, the water volesMimomys
praepliocaenicus and Mimomys ex gr. reidi, and the primitive red-
backed voles Clethrionomys kretzoii were also present (Tesakov,
2004).
e, (2013), vol. 4, pp. 605-614
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Figure 2 Anancus arvernensis, C. Flerov painting exhibited in thePaleontological Museum of the Paleontological Institute, RussianAcademy of Sciences (PIN) in Moscow, with PIN permission.
Figure 3 Podpusk–Lebyazh’e locality at the right bank of the IrtyshRiver, Western Siberia.
VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia 607
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In the south of Western Siberia, faunal assemblages
described by Vangengeim and Zazhigin have been reported
from Podpusk-Lebyazh’e, from the lower part of the thick
sandy alluvial deposits exposed on the right bank of
the Irtysh River, south of Pavlodar (Vangengeim, 1977;
Vislobokova, 1996; Figure 3). Typical members include A.
gromovi, S. cf. etruscus, Elasmotherium sp., Equus livenzovensis,
Equus sp. (small), Paracamelus cf. gigas, Eucladoceros sp., Lepto-
bos, and the antelopes Gazella cf. sinensis and Antilospira
cf. gracilis (Vislobokova, 1996). The faunal assemblage con-
sisted mainly of forms widespread in the temperate zone of the
Palearctic region (Ursus cf. etruscus, Homotherium, Pachycrocuta,
and others), with some Central Asian elements (Ochotonoides,
Elasmotherium, Paracamelus, Antilospira cf. gracilis, Gazella
cf. sinensis), some of which (e.g., Paracamelus) reached Eastern
Europe. Among the small mammals, voles with rooted denti-
tion of the genus Mimomys (M. pliocaenicus and M. reidi) and
Borsodia (B. praehungarica-petenyii) were predominant and
Clethrionomys appeared for the first time in Siberia (Zazhigin,
1980). The mammalian assemblages indicate the prevalence
of steppes with woodland developed along river valleys.
Encyclopedia of Quaternary Scien
In northeastern Asia, the association of Synaptomys-like
lemmings Plioctomys and mimomyian voles Cromeromys ex gr.
irtyshensis-hordijki and smaller Mimomys sp. were found in the
lower member of the Kutuyakh Formation at the Krestovka
River in the Kolyma Lowland (Sher, 1987; Tesakov and van
Kolfschoten, 2011). The assemblage is dominated by lem-
mings and ‘Cromeromys’ voles, with Ochotona sp. and Mimomys
sp. being less abundant.
Several faunas of this age have been referred to the Central
Asian subarea (Erbaeva and Alexeeva, 2000; Sotnikova et al.,
1997; Vangengeim, 1977; Vislobokova et al., 1995). These
include the Itanza fauna of Klochnevo I, II (Transbaikalia)
with Ochotona intermedia, the ground squirrel Spermophilus
itancinicus, Allactaga sp., the hamster Cricetinus varians, the
voles Mimomys pseudintermedius, Clethrionomys sp., and
‘Villanyia’ klochnevi, the archaic mole rat Prosiphneus cf.
paratingi, the first representative of the giant deer genus
Praemegaceros and others, as well as the Kiikbai and Andyrgan
faunas (southern Kazakhstan) with Ochotonoides complicidens,
Mimomys pliocaenicus, the gerbil Meriones cf. meridianus,
Equus stenonis, the camel Gigantocamelus longipes, and other
forms.
The fauna of Southern Tadzhikistan has affinities with the
Eastern Mediterranean subarea and is characterized by a com-
bination of Mediterranean and Central Asian forms. The rich
assemblage from Kuruksay contained, along with A. gromovi
and Mastodontoidea fam. et gen. indet., the baboon Papio
sushkini (¼ Paradolichopitecus sushkini), the porcupine Hystrixsp., diverse carnivores including Nyctereutes megamastoides,
eucyon ‘Canis’ kuruksaensis, Ursus cf. etruscus, the cursorial
hyena Chasmaporthetes lunensis kani, Pliocrocuta perrieri, Lynx ex
gr. issidorensis, Acinonys cf. pardinensis,Megantereon megantereon,
and Homotherium crenatidens, the rhinoceros Stephanorhinus
sp., the horse Equus stenonis pamirensis (¼ E. s. bactrianus),the camel Paracamelus praebactrianus, the deer Axis flerovi
and Elaphurus eleonorae, the first representative of the giant
deer genus Sinomegaceros (S. tadzhikistanis), the elk Libralces
cf. gallicus, the giraffids Sogdianotherium kuruksaense and
Sivatherium, and the antelopes Gazella parasinensis, Protoryx
paralaticeps, Damalops palaeindicus, Gazellospira gromovae, and
Antilospira sp., amongst others (Dmitrieva, 1977; Vangengeim
et al., 1988). In this region, a large number of Asian elements
occurred. Animals of dry, open landscapes (Ellobius, Pliocrocuta,
Chasmaporthetes, Paracamelus, Equus) were accompanied by
forest animals (bear, lynx, monkey, the deer Axis and Libralces)
and savannah inhabitants (Sivatherium, Protoryx, Damalops,
Gazellospira). Such a mixed composition reflected the mosaic
landscapes and vertical zonality typical of mountainous
regions. In Tadzhikistan, the local faunas attributed to this
assemblage are known also from Obigarm, Karamaidan,
Tutak, and Zil’fi localities, while faunas close to them in age
were found in Kyrgyzstan (Akterek, Dzylgyndykoo) (Dmitrieva
and Nesmeyanov, 1982; Sotnikova et al., 1997).
The reversed polarity of the fossiliferous deposits in Khapry
indicates that these sediments should be attributed to the lower
part of the Matuyama Chron, together with analogous sites
in Siberia and Central Asia (Podpusk-Lebyazh’e, Krestovka,
Kuruksay) (Sotnikova et al., 1997; Tesakov et al., 2007;
Vangengeim and Pevzner, 1991; Vangengeim et al., 1988;
Vislobokova, 1996).
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608 VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia
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Late Early Pleistocene: Late Villafranchian, MN18–MQ19, ¼Tiglian–Menapian
Psekups mammal assemblage and its analogsThis stage is characterized by significant changes in the diver-
sity of mammal communities (Figure 4). In Northern Eurasia,
a cold-climate event around 2.2–1.9 Ma resulted in the appear-
ance of new boreal elements, including some modern genera.
In the European-Siberian subarea, Archidiskodon gromovi was
replaced by the more progressive A. meridionalis (¼ Mam-muthus meridionalis), close to the type of the species from
the Upper Valdarno, Italy. Voles of the genus Allophaiomys,
the giant deer Praemegaceros, the elk Alces, the large bovids
of the genus Bos and the Bison (Eobison) – B. (Bison) phyletic
lineage, and the musk-ox Soergelia first appeared in this stage.
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Figure 4 Mammal assemblages and faunas of Northern Eurasia and the ma
Encyclopedia of Quaternary Scienc
In Psekups (Northern Ciscaucasia), Archidiskodon meridio-
nalis, Eucladoceros orientalis (¼ Psekupsoceros orientalis, first rec-ognized as Cervus pliotarandoides), Stephanorhinus etruscus, and
Equus stenonis were present (Alexeeva, 1977; Gromov, 1948;
Vislobokova, 1990; and others). The small mammals included
Borsodia newtoni-arankoides, Pitymimomys pitymyoides, Mimomys
cf. pliocaenicus, Mimomys reidi, and Clethrionomys kretzoii
(Alexandrova, 1976; Tesakov, 2004). These reversed polarity
deposits correspond to the Matuyama Chron, between the
Reunion and Olduvai Subchrons (Tesakov, 2004; Vangengeim
and Pevzner, 1991). Slightly younger assemblages from the
Odessa small mammal complex contain hypsodont Mimomys
forms (dominant M. reidi and M. ex gr. savini), the last repre-
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e, (2013), vol. 4, pp. 605-614
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Figure 4 (Continued)
VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia 609
Author's personal copy
unrooted teeth Prolagurus and Lagurodon, and Allophaiomys deu-
calion (Alexandrova, 1967; Rekovets and Nadachowski, 1995;
Tesakov, 2004). The Odessa assemblage is subdivided into two
phases: (1) an early phase, with the remains of rootless voles
Allophaiomys deucalion and (2) a late phase, with the first cemen-
ted rootless voles of Prolagurus (P. ternopolitanus) and Lagurodon
(L. arankae) (Markova, 1982, 2007).
In the Caucasus, the Dmanisi fauna is famous for the pres-
ence of the first appearance in Eurasia of Homo, following
dispersal from Africa. The remains of the Dmanisi hominins
are attributed to the Homo erectus group and were found in the
layers directly overlying a lava flow with a radiometric date of
1.8�01 Ma, within the Olduvai Subchron. The fauna com-prises inhabitants of dry, open area (the tortoise Testudo, the
ostrich Struthio, the gerbil Parameriones, the pika Ochotona, the
hamster Cricetulus, A. meridionalis, Canis etruscus, Pliocrocuta
Encyclopedia of Quaternary Scien
cf. perrieri, Megantereon cultridens, Homotherium crenatidens,
Palaeotragus) and forest animals (Bison (Eobison) georgicus, the
deer Cervus abesalomi and Dama nestii, the bear Ursus etruscus)
(Gabunia and Vekua, 1995; Hemmer et al., 2010; Vekua, 1995;
Vekua and Lordkipanidze, 2008). The first occurrences of the
‘jaguar’ Panthera onca georgica and musk ox Soergelia are
recorded there. The contemporaneous Palan-Tyukan fauna
(Azerbaijan) includes Canis etruscus, Panthera ex gr. onca gom-
baszoegensis, and Nyctereutes megamastoides.
In Western Siberia, A. cf. meridionalis, Equus ex gr. stenonis,
Alces sp., and Gazella sp. along with Borsodia ex gr. petenyii-
hungaricus, andMimomys coelodus are known from the Podpusk
fauna (from the uppermost part of the sands in the Irtysch
River Basin) (Vislobokova, 1996). In southern Kazakhstan, the
Aktogai (Kopaly) locality with Mimomys (Tcharynomys) haplo-
dentatus (bed 3) and Allophaiomys deucalion (bed 7) also
ce, (2013), vol. 4, pp. 605-614
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Figure 5 A skeleton of Elasmotherium on display in the PaleontologicalMuseum of the Paleontological Institute, the Russian Academy ofSciences (PIN), Moscow, with PIN permission.
610 VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia
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corresponds to this age (Sotnikova et al., 1997; Tjutkova and
Kaipova, 1996).
In the Kuznetsk Depression, Allophaiomys pliocaenicus, Pro-
lagurus ex gr. pannonicus-posterius, Eolagurus argyropuloi, Archi-
diskodon cf. meridionalis, and Ovibovini gen. indet. were found
in the Mokhovo Formation, 1.8–1.2 Ma (Foronova, 2001).
In northeastern Asia, a tooth of Archidiskodon meridionalis
meridionalis was found in the Vilyuisk district, Yakutia; the find
confirmed the spread of the subspecies into North America
over the Bering land bridge (Dubrovo, 1990), probably at the
end of the 2.9–2 Ma global sea level fall.
In Transbaikalia, the Dodogol and Zasuchino II faunas
have been referred to the Central Asian subarea. In Dodogol,
Borsodia laguroformes, Allophaiomys cf. pliocaenicus, Prosiphneus
youngi, the first woolly rhino Coelodonta (of Asian origin),
Equus ex gr. sanmeniensis, and others were present (Vangengeim,
1977). The revised data on the Pleistocene small mammals of
the region are presented in Alexeeva et al. (2007) and Alexeeva
and Erbaeva (2008).
Terminal Early Pleistocene: Early Galerian, 1.2–0.8 Ma
The time range from 1.2 to 1.1 Ma (before the Jaramillo paleo-
magnetic reversal) is an important boundary in the history of
the biota, and is reflected in the nomenclature of stratigraphic
schemes (the Villafranchian–Galerian boundary or the Early–
Late Eopleistocene boundary in the scheme of the Russian
Stratigraphic Committee).
Tamanian mammal assemblage and its analogs(Nogaisky–Morozovka, ¼ Menapian–Bavelian)This stage is characterized by the replacement of Archidiskodon
meridionalis meridionalis by the more advanced A. meridionalis
tamanensis, the first appearance of the giant deer Praemegaceros
verticornis and Megaloceros, the red deer Cervus (Cervus) acoro-
natus, the roe deer Capreolus cf. suessenbornensis, the broad-
fronted elk Alces latifrons, the bison Bison (Bison), camels of
the genus Camel, the first occurrence of the woodland elephant
Palaeoloxodon and woodland antelopes Tragelaphus and
Pontoceros, and the presence of Paracamelus (P. kujalnensis)
(Alexeeva, 1977; Gromov, 1948; Vekua, 1962; Vereshchagin,
1957; and others). From the end of the early to the middle
Pleistocene, true wolves attributed to the Canis mosbachensis–
C. variabilis group and large hunting dogs Lycaon lycaonoides
(¼ Canis (Xenocyon) lycaonoides) existed in Eurasia fromWesternEurope to Transbaikalia andChina (Sotnikova and Rook, 2010).
The Tamanian mammal assemblage is based on the fauna
of Synaya Balka (type locality) and Tsymbal in the Taman
Peninsula. A. meridionalis tamanensis coexisted in the North
Black Sea area with Homotherium crenatidens, the short-faced
hyena Pachycrocuta brevirostris, the horse Equus suessenbornensis,
the rhinoceroses Stephanorhinus etruscus and Elasmotherium
caucasicum, and others (Alexeeva, 1977; Sotnikova and Titov,
2009; Vereshchagin, 1959; Figure 5). Vereshchagin (1957)
also identified the potential impact of early hominins on
some of these assemblages. And recently, stone artifacts of the
Oldowan type were reported from the Synyaya Balka site by
Shchelinsky et al. (2010). In the Asian part of the territory, the
first reliable evidence of human activity comes from the stone
tool assemblage of Kuldara (Ranov et al., 1995) dated to
Encyclopedia of Quaternary Scienc
0.8 Ma and broadly synchronous with stone tools from the
Karama site in the Altai region (Derevyanko and Shunkov,
2005).
Morozovkian small mammal fauna with more derived
voles Microtus (Stenocranius) hintoni and the pitymyoid Micro-
tus sp. are correlated with these assemblages (Alexandrova,
1976; Rekovets and Nadachowski, 1995). The small mammal
fauna of this stage are also represented in the Dnieper, Dnies-
ter, and Don basins (Agadjanian, 2009; Alexandrova, 1976;
Markova, 2007; Tesakov et al., 2007; Topachevsky et al.,
1987; and others). The assemblages include an advanced
meadow vole Allophaiomys (A. pliocaenicus) and the steppe
lemmings Prolagurus pannonicus, Lagurodon arankae, and Eola-
gurus argyropuloi.
At this time, differentiation of environment sharply
increased. In the Caucasus (Akhalkalaki, Georgia), the most
thermophilous elements continued to exist, including Hippopot-
amus georgicus, Equus suessenbornensis, and Stephanorhinus hund-
sheimensis, the cave or ‘spelaeoid’ bear close to U. deningeri, and
the first jaguar (close to P. onca gomboszoegensis) (Hemmer et al.,
2010; Vekua, 1962, 1986). In Siberia, the diversity ofmusk-oxen
increased. The ovibovine Soergelia occurred in the Razdolie as-
semblage (Western Siberia) with A. meridionalis, Palaeoloxodon
sp., Equus (Allohippus) sp., Bison sp., and Ovibovini (Vangen-
geim, 1977). The remains of Soergelia and the oldest members
of Praeovibos were found in the early stage of the Olyorian land
mammal age (Beringia, Bering Province) (1.4–0.8 Ma) together
with those of the first wolverine Gulo minor (¼ G. cf. schlosseri)(Sher, 1971, 1987; Sher et al., 2011; Vangengeim, 1977). These
co-occurred with Archidiskodon sp., Lycaon lycanoides, Equus
(Plesippus) verae, Alces sp., Bison sp., and others. The northern-
most finding of Homotherium in Asia is associated with this
fauna. In Eastern Siberia, the Aldan fauna included a number
of forest inhabitants (Trogontherium cf. cuvieri, Palaeoloxodon ex
gr. namadicus, Alces latifrons, and Microtus gregaloides). In Trans-
baikalia, the Kudun (Kizhing–Kudun depression) and Zasu-
khino (Itanza River basin) correspond to the youngest part of
the early Pleistocene and are correlated with the uppermost
Matuyama Chron (Erbaeva and Alexeeva, 2000).
The oldest Camelus (C. cf. knoblochi) coexisted with the
giant deer Praemegaceros (close to P. verticornis) in southern
e, (2013), vol. 4, pp. 605-614
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VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia 611
Author's personal copy
Tadjikistan (Lakhuti locality, the uppermost part of the
Matuyama) and members of diverse habitats. They included
inhabitants of open, dry, and savannah-like landscapes, such
as the gerbil Meriones lacutensis and mole vole Ellobius lakhu-
tensis, Archidiskodon sp., Equus cf. namadicus, and Canis cf.
mosbachensis, in association with a large Lycaon, Pachycrocuta
brevirostris,Homotherium sp., the red-backed vole Clethrionomys,
Panthera onca gomboszoegensis, the badgerMeles ex gr.meles, and
the giant deer Sinomegaceros sp. (Sotnikova, 1989; Sotnikova
and Vislobokova, 1990). Small mammals also included white-
toothed shrew Crocidura sp., a hamster Cricetulus sp., the
meadow voles Allophaiomys sp., and Microtus (Phaiomys) lachu-
tensis (data from Zazhigin).
Faunas intermediate in age between the Tamanian and
Tiraspolian faunas are known from the lower course of the
Dnester River (Karai-Dubina) and in the middle Don (Petro-
pavlovka) area and have been studied in detail (Agadjanian,
2009; Markova, 2007). The reversed polarity deposits contain
the remains of Prolagurus and pitymyoid Microtus, the last
representatives of Allophaiomys, and the oldest Microtus with
five closed enamel triangles in the first lower molar.
The dispersal of mammals out of Northern Eurasia in-
creased from about 1.2 to 1.1 Ma; Praemegaceros verticornis
and Soergelia invaded Western Europe and Homo erectus and
Sinomegaceros first occurred in China (Kahlke et al., 2011; Qiu,
2006).
60� 70� 80�
90�80�
1
70�60�
0 1250 2500 km
50�
50�
40�
30�
Figure 6 Zonal occurrence of mammals in the early–middle Pliocene, with sand broadleaved forests; (4) Picea-Pinus and Betula forests, with some broad(7) tundra.
Encyclopedia of Quaternary Scien
Early Middle Pleistocene: Middle–Late Galerian, ¼Cromerian–Elsterian, 0.8–0.4 Ma
The early–middle Pleistocene boundary of the standard
scheme corresponds to the Eopleistocene–Neopleistocene
boundary of the Russian stratigraphic scheme and the Early–
Middle Galerian boundary in Italy.
Tiraspolian mammal assemblages and its analogsThe considerable reorganization in the composition of mam-
malian communities was related to a drop in temperature
at the early–middle Pleistocene boundary, with a notable
increase in amplitude of climatic oscillations. Along with
progressive cooling, climatic fluctuations changed from 41-ka
low-amplitude cycles to a 100-ka high-amplitude cycle
(Shackleton, 1995). In the Russian Plain, three periods of
glaciation correspond to this stage (Pokrovka, Don, and Oka).
The climatic zonation of the northern Eurasian landscape
began to resemble that of the present day (Figure 6). Archidis-
kodon was replaced by the mammoth Mammuthus trogontherii
(¼ A. wüsti) and the proportion of modern vertebrate generasharply increased.
The representatives of the Tiraspolian mammal assemblage
in southeastern Europe existed under a temperate climatic
regime in a variety of landscapes, dominated by forest-steppes
(Alexeeva, 1977). Kolkotova Balka (near Tiraspol) is the type
80� 70� 60�
50�
40�
30�
130�120�110�100�
2 3 4 5 6 7
ome data from Markova (2006): (1) steppe; (2) forest-steppe; (3) mixedleaved plants; (5) Picea-Pinus forests and steppe; (6) forest–tundra;
ce, (2013), vol. 4, pp. 605-614
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Figure 7 Megaloceros giganteus, C. Flerov’s painting exhibited in thePaleontological Museum of the Paleontological Institute, RussianAcademy of Sciences (PIN), Moscow, with PIN permission.
612 VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia
Author's personal copy
locality of this assemblage. The fossil remains were found in
the so-called ‘Tiraspolian gravels’ (fluvial deposits of the Dnies-
ter 6th terrace). Horses were represented by both caballoid
(Equus cf. mosbachensis) and stenonis (E. aff. suessenbornensis)
forms. Mammuthus trogontherii, Stephanorhinus etruscus (late
form), the large deer Cervus acoronatus, Praemegaceros verticor-
nis, the fallow deer Praedama and Alces latifrons, and a short-
horned bison Bison schoetensacki are common to both the
Tiraspolian fauna and the fauna of Western Europe (Kahlke
et al., 2011; Nikiforova, 1971). Two skeletons ofM. trogontherii
were found in the Kagalnik sand pit (Azov). Data on small
mammal fauna represent several phases of Tiraspolian mam-
mal assemblages (see Markova, 2007). A considerable cooling
has been recognized in the southern part of European Russia at
the time of the early middle Pleistocene Don glaciations,
highlighted by the presence of subarctic species such as the
lemmings Lemmus ex. gr. Sibiricus and Dicrostonyx sp. and the
North Siberian vole Microtus ex gr. hyperboreus (Agadjanian,
2009).
The southward shifting of ranges, with persistence of some
forms in refugia (including mountain ones), was usual during
continental glaciations. Very diverse mammal faunas are
known from the northern Caucasus. Most are associated with
Early Paleolithic sites and stone artifacts of Acheulian type. The
taxa include the macaque monkey Macaca cf. sylvana, the spot-
ted hyena Crocuta spelaea, diverse bears including cave bear
Ursus deningeri (dominant), black bear Ursus ex gr. thibetanus
probably related toU. etruscus, and the small cave bearU. savini
rossicus (¼ U. aff. spelaeus rossicus), the cave lion Panthera spelaeaand leopard P. pardus, the gray wolf Canis lupus, the fox Vulpes
vulpes, Stephanorhinus,Megaloceros giganteus, Capreolus cf. suessen-
bornensis, Bison cf. schoetensacki, together with typical montane
genera such as the ibex Rupicapra and the goat Capra.
The fauna of the late stage of the Olyorian faunal assem-
blage (West Bering Province) are characteristic of tundra and
forest–tundra environments and cold climatic conditions sim-
ilar to modern ones (Sher, 1971, 1987; Vangengeim, 1977).
This fauna included the first reindeer Rangifer. Alces aff. latifrons
and Bison sp. were also present in the artiodactyl community.
Rangifer is also recorded in the early middle Pleistocene of the
Kuznetsk Depression (Foronova, 2001).
In Transbaikalia, the Tologoi assemblage contained the
woolly rhino Coelodonta tologoijensis, Equus ex gr. sanmeniensis,
Cervus ex gr. elaphus, Spirocerus cf. peii, and Bison sp.
(Vangengeim, 1977). Cryogenic disturbance at the base of the
deposits is associated with remains from the Zasuhino assem-
blages (Zasuhino 3, 1–0.78 Ma) and in Tologoi 2 beneath the
Brunhes–Matuyama magnetic reversal, above the Jaramillo
(Alexeeva, 2005). The fauna is characterized by a large diversity
of carnivores and ungulates: Nyctereutes sp., Canis variabilis,
Lycon cf. lycaonoides (¼ Xenocyon lycaonoides), Ursus sp., Gulosp., Pachycrocuta brevirostris, Homotherium sp., the large-sized
tiger Panthera ex gr. tigris, Coelodonta tologojensis, Equus ex gr.
sanmeniensis, Equus ex gr. suessenbornensis–verae, Alces cf.
latifrons, and others (Vangengeim et al., 1990). Zasuhino 3
locality also has yielded Cervus sp., Megacerini indet, Capreolus
cf. suessenbornensis, Ovibovini indet., and Bison sp.
At the boundary of the early and middle Pleistocene, a
prominent climatic deterioration was marked over northern
and central Eurasia and many immigrants from these regions
Encyclopedia of Quaternary Scienc
are recorded in Western Europe. The Bering land bridge (0.8–
0.011 Ma) further facilitated faunal exchanges between North-
ern Asia and North America.
Late Middle Pleistocene, ¼ Aurelian, ¼ Holsteinian–Saalian,0.4–0.126 Ma
Singilian and Khasarian faunas and their analogsThe Singilian fauna and its analogs are related to the Likhvin
interstadial (¼ Mindel-Riss, ¼ Holsteinian), one of the mostpronounced warm stages in the middle Pleistocene. In Eastern
Europe, the Singilian faunas were represented by the straight-
tusked elephant Palaeoloxodon antiquus and Merck’s rhinoceros
Stephanorhinus kirchbergensis. In the south of Northern Eurasia,
gray wolf (Canis lupus), Camelus knoblochi, Megaloceros gigan-
teus, and Bison priscus longicornis became widespread after
the mid-middle Pleistocene (Alexeeva, 1977; Gromov, 1948).
Typical small mammals include the water vole Arvicola mosba-
chensis, the yellow steppe lemming Eolagurus luteus, the narrow-
skulled vole Microtus gregalis, the northern or root vole
M. oeconomus, Ellobius, and the ground squirrel Spermophilus
(Markova, 2007). In Western Siberia, Palaeoloxodon coexisted
with Equus cf. steinheimensis, a small-sized cave bearUrsus savini
rossicus (¼ Ursus spelaeus rossicus), and the giant deer Megalo-ceros giganteus during the contemporaneous Tobol interstadial
(Vangengeim, 1977; Figure 7). From this time onward
(�400 ka), the giant deer became widespread in the temperatelatitudes of Eurasia, together with modern deer species (red
deer Cervus elaphus and the reindeer Rangifer tarandus).
The Khasarian faunal assemblage (Dnepr glaciation) with
its type locality at Cherny Yar (Volga River Basin) contained
Mammuthus trogontherii chosaricus (ancestor of the woolly
mammoth Mammuthus primigenius), Panthera spelaea, Elas-
motherium sibiricum, the woolly rhinoceros Coelodonta antiqui-
tatis, Equus chosaricus, Camelus knoblochi, the long-horned bison
Bison priscus longicornis, Megaloceros giganteus, and modern
genera and species, including Cervus elaphus, Rangifer tarandus,
the musk-oxen Ovibos, the saiga antelope Saiga, etc., the water
vole Arvicola chosaricus, and a diverse assemblage of steppe-
adapted small mammals (Alexandrova, 1976; Dubrovo, 1985;
Gromov, 1948). The fauna existed in the colder and drier
e, (2013), vol. 4, pp. 605-614
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VERTEBRATE RECORDS | Early and Middle Pleistocene of Northern Eurasia 613
Author's personal copy
climate of the periglacial forest-steppe along the southernmargin
of the continental Dnieper glaciation (Riss, RI) (Vangengeim,
1977). However, localities rich in large mammal are rather
rare. In the south of the Russian Plain, typical subarctic and
steppe smallmammals occurred (Dicrostonyx simplicior, Lemmus
sibiricus, Lagurus ex gr. lagurus, Microtus gregalis). In the
Caucasus region, the tar pit Binagady fauna near Baky belongs
to the same stage. Under modern conditions, the range of some
animals became completely separated and confined to different
biomes.
Conclusions
The data on the early and middle Pleistocene mammals from
Northern Eurasia offer important insights into our knowledge
of the history of mammals. These assemblages differ consider-
ably in their composition as a result of evolutionary and mi-
gration processes. In the Pleistocene, the general trend toward
global temperature decrease, changes in landscape and climatic
conditions, and differentiated environmental patterns caused
important changes in mammal communities within the terri-
tory at the suprageneric, generic, and species levels. The faunas
demonstrate adaptation from the temperate climatic condi-
tions of the pre-Pleistocene to the cooler and more diverse
conditions at the end of the Pleistocene. A gradual disappear-
ance is therefore noted of the Miocene–Pliocene and ther-
mophilous forms (mastodons, giraffids, hippopotamids,
hyenids) with their extinction or displacement to southern
Asia or Africa, paralleled by the development of Pleistocene
and modern genera and species, and the gradual emergence of
associations typical for modern biomes (tundra, steppes, for-
est, etc.).
The main periods of turnover in mammal communities of
Northern Eurasia coincided approximately with the maximum
drops in global temperature, which were accompanied by
large-scale transformations of the environment. The most sig-
nificant changes occurred at the Pliocene–Pleistocene (2.6 Ma)
and early–middle Pleistocene (0.8 Ma) boundaries. Changes
in faunal composition were also reported at 1.8, 1.2, and
0.4 Ma. Beginning in the middle Pleistocene, the turnover
affected mammal diversity at the generic and species levels.
Immigration to and from adjacent territories played an impor-
tant role in these faunal transformations.
The roots of some modern genera are found in the late
Miocene (Canis, Axis, etc.), the Pliocene (Nyctereutes, Ursus,
Lynx, Equus), the Gelasian (Gulo, Cervus, Alces, Capreolus,
Bison), and the middle Pleistocene (Camelus, Rangifer, Ovibos,
Saiga). The Pliocene–Pleistocene boundary is marked by the
disappearance of a number of thermophilous forms. Evolu-
tionary trends can be traced equally in the large herbivorous
animals (elephants, rhinoceroses, horses, artiodactyls), various
carnivores (canids, ursids, hyenids, felids), and small mam-
mals. A clear boreal group, which comprised the ancestral
forms of modern Northern Eurasian species, started to form
actively at the beginning of the late early Pleistocene, around
1.8 Ma. The increasing amplitude of global cooling was then
accompanied by the appearance and widespread distributions
of first boreal and then arctic forms in northern Siberia and the
mountainous regions of Central Asia. Boreal communities
Encyclopedia of Quaternary Scien
became more widespread in the early middle Pleistocene
(true wolves, tiger Panthera tigris) and at the end of late middle
Pleistocene (Khasarian), with the first appearance of modern
species (Cervus elaphus, Rangifer tarandus, Ovibos, Saiga, etc.).
Zoogeographic provinciality therefore increased from the Early
toward the late middle Pleistocene.
See also: Vertebrate Records: Early Pleistocene; Late PleistoceneMegafaunal Extinctions; Late Pleistocene Mummified Mammals; LatePleistocene of Africa; Late Pleistocene of North America; LatePleistocene of South America; Late Pleistocene of Southeast Asia; Mid-Pleistocene of Africa; Mid-Pleistocene of Europe; Mid-Pleistocene ofSouthern Asia.
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e, (2013), vol. 4, pp. 605-614
Early and Middle Pleistocene of Northern EurasiaIntroductionMammal Assemblages of Northern EurasiaEarly Pleistocene: Gelasian, Middle Villafranchian, Late Villanyian, MN17The Khaprovian (Khapry) mammal assemblage and its analogs
Late Early Pleistocene: Late Villafranchian, MN18-MQ19, = Tiglian-MenapianPsekups mammal assemblage and its analogs
Terminal Early Pleistocene: Early Galerian, 1.2-0.8 MaTamanian mammal assemblage and its analogs (Nogaisky-Morozovka, = Menapian-Bavelian)
Early Middle Pleistocene: Middle-Late Galerian, = Cromerian-Elsterian, 0.8-0.4MaTiraspolian mammal assemblages and its analogs
Late Middle Pleistocene, = Aurelian, = Holsteinian-Saalian, 0.4-0.126MaSingilian and Khasarian faunas and their analogs
ConclusionsReferences