Concise hierarchy
(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Thecodontia
Phylogeny
Questionably Paraphyletic/Ancestral (para) | |
Ref:
P. Uetz, [1995-]1996: 30 Dec 1996 ("ancestors of birds ?").
|
Current position
Historical positions
Number of Subtaxa