Definitions

1. noun

A prehistoric mammalian reptile of the order Rhynchocephalia, closely related to modern tuatara. It lived during the Triassic period and was characterized by a long, narrow snout and a row of spines along its back.

“Fossil evidence suggests that the rhineodon was an apex predator in its ecosystem.”

2. noun

A genus of extinct rhynchocephalian reptiles, known for their long, narrow snouts and rows of spines along their backs.

“The discovery of a new rhineodon species has shed new light on the evolution of these prehistoric creatures.”