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Specs: Lepisosteus
Duckbill ungual
Coelophysis was first described by Cope in 1889 from the early Triassic from 208-200 MYA years ago
Starfish have remained relatively unchanged throughout their 500 million year history
Procaimanoidea, Green River, Alligator Skeleton Compsognathus Specs: LepisosteusThis is one of the best preserved fossil alligators found in the Green River Formation (GRF). The GRF is one of the most important fossil sites in the world for understanding the Eocene. The GRF is located in western Colorado, eastern Utah and southwestern Wyoming. Radiometric dating puts the GRF at 49. 7 to 50. 7 million years and lasting less than 1 2 million years. Approximately 60 vertebrate taxa have been found at in the GRF, including fish,