True Archosaurs and Early Pseudosuchians



True Archosaurs first appeared during the Early Triassic and soon went on to dominate terrestrial carnivorous niches over the course of the period. Two main lineages emerged: the Pseudosuchians and the Avemetatarsalians. The former can be defined as all Archosaurs closer to modern Crocodilians than to Dinosaurs or Pterosaurs. During the Triassic, the most basal Pseudosuchians were modestly sized, fully terrestrial carnivores capable of running on their hind legs.

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20 thoughts on “True Archosaurs and Early Pseudosuchians”

  1. Everything on the riverbank kept evolving into crocodile forms in the past 300 million years (alongside or before "true" crocodiles) in the same fashion the crab form keeps on emerging.

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  2. This is the first video from you that I've watched and I really enjoyed it.
    I was looking for a triassic animal to draw for an instagram competition and was thinking about drawing postosuchus, but Smok Wawelski definately caught my attention, I might end up drawing it, thank you for this video!!!

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