div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentdinosaurs-existed-about-250-million-years-ago-this-era-is-broken-up-into-threehtmlpage=1 data-page=1 class=trans-thumb lazyload 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 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentdinosaurs-existed-about-250-million-years-ago-this-era-is-broken-up-into-threehtmlpage=2 data-page=2 class=trans-thumb lazyload 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 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220424075f214897b9bd3b2c5c56a8bdhtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentdinosaurs-existed-about-250-million-years-ago-this-era-is-broken-up-into-threehtmlpage=3 data-page=3 class=trans-thumb lazyload 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 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...