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Phareodus testis | Zero Restoration | Green River Formation

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Original price $850.00
Original price $850.00 - Original price $850.00
Original price $850.00
Current price $650.00
$650.00 - $650.00
Current price $650.00
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 Osteoglossidae
Living 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 underside, adaptation for speed
  • large, sharp teeth
  • max known size of P. encaustus: 30 inches
  • max known size of P. testis: 20 inches
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