| Trinacromerum | |
|---|---|
| |
| Life restoration of Trinacromerum kirki | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| Subclass: | Sauropterygia |
| Order: | Plesiosauria |
| Superfamily: | Plesiosauroidea |
| Family: | Polycotylidae |
| Genus: | Trinacromerum Cragin, 1888 |
Trinacromerum is an extinct genus of sauropterygian reptile, a member of the polycotylid plesiosaurs. It contains two species, T. bentonianum and T. kirki. Specimens have been discovered in the Late Cretaceous fossil deposits of what is now modern Kansas and Manitoba.
Description[]
Trinacromerum was 3 meters long. Its teeth show that it fed on small fish.
Classification[]
Below is a cladogram of polycotylid relationships from Ketchum & Benson, 2011.
| Plesiosauroidea |
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