Plotosaurus

Halisaurus sp. from the Quiriquina Formation. Originally thought to represent Plotosaurus.

Highly derived mosasaur from the Moreno Formation that could grow to large sized. Converges with basal ichthyosaurs in bauplan- and has tuna-like swimming motion.

Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America.

Crop of file in filename

Life reconstruction of Plotosaurus bennisovi

Plotosaurus skeletal mount in Natural History Museum of Los Angeles County, California, United States.

Mounted skeleton of the highly derived California mosasaur Plotosaurus bennisoni (CIT 2750) on display at the Natural History Museum of Los Angeles County

Mounted skeleton of Plotosaurus from the Los Angeles County Natural History Museum; see the original image

Photo montage of different specimens of mosasaurs: Opetiosaurus Vallecillosaurus Halisaurus Plotosaurus Platecarpus Tylosaurus