https://padlet.com/awilhe01/71repdvn9gqkehcd en-us 2021-04-13 21:52:31 UTC 2026-01-25 00:58:46 UTC hello@padlet.com https://padlet.net/icons/png/1f996.png awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414110899 Dinosaurs lived and evolved for over 185 million years until they became extinct. The cause has not been proven yet, but many believe that an asteroid Over 9 miles wide hit the earth In the Gulf of Mexico.]]> 2021-04-13 21:55:06 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414110899 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414111859 The Triassic Period is the first phase of the Mesozoic era and spanned for an interval of 35 million years from 250-205 million years ago. Planet Earth was a very different place back then with the most common difference is that all the continents were united to form one huge c shaped landmass or supercontinent known as Pangaea meaning “all lands”.]]> 2021-04-13 21:55:35 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414111859 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414113573 The Jurassic Period was the second phase of the Mesozoic Era. The time scale for this famous period is from 205 to 138 MYA (million years ago). This period was named after the Jura Mountains because of the exposure and discovery of the marine limestones.]]> 2021-04-13 21:56:29 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414113573 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414114115 The Cretaceous Period was the last period of the Mesozoic era and marked the end of the dinosaurs. It spanned a time from 138 million to about 65 MYA (million years ago). In this period the continents fully separated. However, Australia and Antarctica were still united.]]> 2021-04-13 21:56:47 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414114115 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414114644 Very generally, the word “dinosaur” refers to a large group of reptiles that evolved during the Mesozoic era which stood erect and which generally had hind limbs longer than their front limbs. ]]> 2021-04-13 21:57:04 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414114644 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414116854 Over 2,000 species! ]]> 2021-04-13 21:58:18 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414116854 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414118287 Dinosaurs lived during the Mesozoic era, which began about 250 million years ago and ended about 65 million years ago. The oldest known dinosaurs have been found in Madagascar and Poland and are estimated to be about 230 million years old. There is an unpublished report, however, of a dinosaur from Brazil that is estimated to be between 235 and 240 million years old.]]> 2021-04-13 21:59:05 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414118287 awilhe01 https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414119740 They have been extinct for more than 65 million years. Most scientists believe, however, that the birds we see around us today are the direct descendants of theropod dinosaurs, and they therefore technically consider birds to be dinosaurs. Birds?? Wow who would have thought. But what caused them to be extinct was a 6 mile long astroid that struck the earth! ]]> 2021-04-13 21:59:53 UTC https://padlet.com/awilhe01/71repdvn9gqkehcd/wish/1414119740