Platecarpus tympaniticus

 

Platecarpus tympaniticus

Locality: Kansas
Formation: Niobrara
Skull Length: 5 m (17 feet)
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Platecarpus scale

Platecarpus tympaniticus

The most robust and most prevalent of all mosasaurs of the Western Interior Seaway, Platecarpus was a highly successful general predator. It was initially thought to have swum in an eel-like fashion, although a recent study suggests it moved more like modern sharks.