dinosaur museum

Pachyrhizodus caninus

Pronounced (PAK-EE-RIZE-OH-DUS KAY-NIE-NUS)

Discovered By: Mike Triebold, 1993
Discovery Location: Lane County, Kansas
Location of Original Specimen: North American Museum of Ancient Life, Lehi, Utah
Diet: Meat Eater (Carnivore)
Period: Late Cretaceous
Age: 84 million years
Formation: Niobrara Chalk
Length: 6 ft

A rarely preserved giant predatory fish from North America’s Late Cretaceous inland sea.

The original specimen was disarticulated and nearly complete, making it a perfect candidate for three-dimensionalization. Every intricate detail of the gill arches, hyoid apparatus and palatine structures are reproduced in the skull.

While these fish were certainly predators, they were also prey to many larger prehistoric fish. In fact, the first specimen of a Xiphactinus audax with Pachyrhizodus caninus remains inside was recently found by a person from the Los Angeles County Museum of Natural History.


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