
Phareodus testis | Zero Restoration | Green River Formation
Phareodus testis Eocene (51.98 Million Years Ago) Green River Formation, Wyoming, USA In Stone Fossils Private Quarry Plate approx. size: 14.5" x 10.75" Phareodus approx. size: 12.75" This Phareodus testis, smaller than it's Phareodus encaustus counterpart, was a predator in ancient Fossil Lake. Bony-Tongue Fish - 2 Species Identified: Phareodus encaustus & Phareodus testis Order Osteoglossiformes, Family OsteoglossidaeLiving members of the Osteoglossidae family: include 10 modern species live exclusively in tropical freshwaters found in South America, Africa, Asia, and Australia mouth-brooders (parents hold eggs and hatchlings in their mouths) Phareodus fossils: adult specimens usually found alone, but juveniles known from mass mortalities indicates that Phareodus schooled as a juvenile and became solitary as an adult often preserved with smaller fish in their jaws and stomach, indicating they were predators rearward oriented fins on back and u