Nothosaurus

Nothosaurus is an extinct genus of marine reptile from the Triassic Period.

Nothosaurus is an extinct genus of marine reptile from the Triassic Period. It was a member of the sauropterygian reptiles, not a dinosaur, and its fossils are known from Europe, North Africa, and Asia. The name means “false lizard,” reflecting its reptilian appearance.

Classification

Nothosaurus is an extinct genus of sauropterygian reptile. Although older sources sometimes loosely call it a dinosaur, modern references identify it as a marine reptile, not a dinosaur.

Fossils and distribution

Fossils of Nothosaurus have been reported from Europe, North Africa, and Asia, indicating a wide geographic range across the former Tethys Ocean region.

Lifestyle and anatomy

Nothosaurus is generally reconstructed as a semi-aquatic predator with a long body, long neck, sharp teeth, and limbs adapted for swimming. Sources describe it as breathing air and spending much of its time in water.

Name and significance

The genus name is derived from Greek roots meaning “false lizard.” Nothosaurus is often presented as one of the best-known early marine reptiles and an important example of Triassic aquatic adaptation.