Reptiles

Crocodilians

Tsoabichi greenriverensis

Caiman

Tsoabichi greenriverensis fossil

Photo: National Park Service, Fossil Butte National Monument

Order
Crocodilia
Family
Alligatoridae

An early caiman from the Alligatoridae lineage — related to living Central and South American caimans.

T. greenriverensis belongs to the subfamily Caimaninae, one of the two primary lineages of the Alligatoridae family. The six living caiman species are native to tropical and subtropical regions of Central and South America. They inhabit slow-moving freshwater streams, lakes, ponds, and flooded wetlands, and feed on insects, amphibians, crayfish, shrimp, and birds.

Species text: National Park Service, Fossil Butte National Monument — Fossil Reptile Species.