A very large Green River formation Phareodus encaustus fossil fish measuring 13" long in a good solid matrix of original "18 inch layer" Limestone measuring 28" x 22" x 1.25". Approximately 50,000,000 years old. A ferocious toothy predator high up the food chain, feeding on the likes of the Knightias and Dyplomystus'. It is an extremely rare find, especially in this condition.

Gillicus arcuatus Fossil Fish Skull

A Gillicus arcuatus fossil fish skull from the Cretaceous Niobrara Chalk of Kansas, U.S.A. A superb genuine fossil assemblage of skull and neck vertebrae of this sought after species. A large and eminently displayable piece, hard backed for rigidity, measuring 17" x 12.2" x 1". Not often offered with this amount of additional bones and neck vertebrae.

Gillicus arcuatus was a 2-meter long ichthyodectid fish that lived in the Western Interior Seaway, in what is now central North America, during the Late Cretaceous. Like its larger relative, Ichthyodectes ctenodon, G. arcuatus had numerous small teeth lining its jaws, and ate smaller fish by sucking them into its mouth.

A very large Green River formation Phareodus encaustus fossil fish measuring 12" long in a good solid matrix of original "18 inch layer" Limestone measuring 15.2" x 10.1" x 0.7". Approximately 50,000,000 years old. A ferocious toothy predator high up the food chain, feeding on the likes of the Knightias and Dyplomystus'. It is an extremely rare find. The matrix has had some repair.

A very rare Asineops Fossil Fish measuring 6.7" long in a good solid matrix of original "18 inch layer" Limestone measuring 10.3" x 9.9" x 0.4". Approximately 50,000,000 years old. It is an extremely rare find, especially in this condition. A very rare species from this location.