Primitive Dinosauriformes (Taxonomic Rank: Group)
Undifferentiated dinosauromorphs and early dinosauriformes including, but not limited to, the Lagosuchidae and the Silesauridae families.

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	Agnosphitys Asilisaurus Diodorus Eucoelophysis Eucoelophysis  Lagosuchus Lametasaurus Lewisuchus Marasuchus Nyasasaurus Sacisaurus Saltopus Silesaurus Spondylosoma

= Extinct Life Forms   = Living Organisms   = Imaginary Creatures   = Inanimate Objects   = Spiritual Entities    = At least one collectible is catalogued