Archosauria

英 美
  • n.古蜥亚纲
  • arch n.拱;拱门;拱状物v.成拱形;拱起adj.主要的;调皮的
  • lining n.衬里;内层
Noun:
  1. a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts