Family

Guaibasauridae

2 dinosaur genera in Omnisaura classed in Guaibasauridae by the Paleobiology Database, oldest first. See all families.

AgnosphitysFraser et al. 2002
Bones237–227.3 million years ago
GuaibasaurusBonaparte et al. 1999
Bones227.3–205.7 million years ago