Platecarpus was an extinct marine reptile from the Mosasaur family, living about 85 to 80 million years ago during the Late Cretaceous period. 

This sleek, streamlined predator grew up to 20 feet long and was well-adapted for life in the oceans, using its flippers and tail to swim swiftly through ancient seas.

Platecarpus primarily fed on fish and squid, and like other mosasaurs, it had a double-hinged jaw that allowed it to swallow prey whole.

Fossils of Platecarpus have been found in North America, offering valuable insights into marine ecosystems during the age of dinosaurs.

This incredible fossil of a kansas platecarpus preying on an ammonite is truly a one of a kind fossil. The small colourful ammolite shows clear bite marks on both sides.