Semirostrum ceruttii Plesiosaurus The vertebral column was composed

The vertebral column was composed of numerous cervical

with an estimated body length of approximately 1 metre

Dental microwear analyses and the sedimentary context of the Siwalik suggest that this species lived in humid savanna ecosystems

It had a large number of teeth in its jaw

Semirostrum ceruttii Plesiosaurus The vertebral column was composedSemirostrum ceruttii was a fossil odontocete belonging to Phocoenidae, the porpoise family, known from marine Pliocene deposits in California, United States. Formally described by Racicot and colleagues in 2014, this taxon represents one of the most extraordinary forms in porpoise evolution because of its extremely elongated lower jaw, which projected far beyond the upper rostrum. Its generic name may be interpreted as half rostrum or half beak,