div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: · Dinosaurs existed about 250 million years ago This era is broken up into three periods known as the Triassic Jurassic and Cretaceous periods The Triassic period lasted for src=https:reader033fdocumentsnetreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: · Dinosaurs existed about 250 million years ago This era is broken up into three periods known as the Triassic Jurassic and Cretaceous periods The Triassic period lasted for src=https:reader033fdocumentsnetreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: · Dinosaurs existed about 250 million years ago This era is broken up into three periods known as the Triassic Jurassic and Cretaceous periods The Triassic period lasted for src=https:reader033fdocumentsnetreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: · Dinosaurs existed about 250 million years ago This era is broken up into three periods known as the Triassic Jurassic and Cretaceous periods The Triassic period lasted for src=https:reader033fdocumentsnetreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 5button div class=trans-image amp-img class=trans-thumb alt=Page 5: · Dinosaurs existed about 250 million years ago This era is broken up into three periods known as the Triassic Jurassic and Cretaceous periods The Triassic period lasted for...