Some groups of Animals and Plants survived the Permian extinction crisis (albeit invariably in much reduced diversity), and then re-diversified successfully in the Triassic, finally entering the Jurassic eriod in good shape. (Let’s call such organisms ‘Evolutionary Stalwarts’, for present purposes.) Other groups made their first evolutionary appearance in the Triassic (by evolving, of course, from more primitive forms), became successful during that Period, and then entered the Jurassic in good shape. (Let’s call these the ‘Evolutionary Newcomers’). Please provide five clear-cut examples of each of these two groups. Start with five Stalwarts; then turn to five Newcomers. Make sure it is clear which is which. Don’t just give names; provide recognizable physical descriptions of each sort of organism. Give ONLY five examples from each group; if more than five are listed, I will use only the first five mentioned, for grading purposes. Please don’t use both a larger group, and a subgroup thereof. (As an example: both ‘Archosaur’ and ‘Dinosaur’ could not be used, since Dinosaurs are a kind of Archosaur.) Please write in sentences and paragraphs. If you have been following the ups and downs of various evolutionary lineages, this question should be logically straightforward, but will still require careful consideration in answering.

The post Some groups of Animals and Plants survived the Permian extinction crisis (albeit invariably in much reduced diversity), and then re-diversified successfully in the Triassic, finally entering the Jurassic eriod in good shape. appeared first on Versed Writers.

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