[tɛtræksˈoʊniə]

Definitions

1. noun

A genus of extinct marine reptiles.

“The paleontologists discovered a new specimen of tetraxonia in the ancient fossil bed.”

2. noun

A group of extinct marine reptiles, characterized by their distinctive skull shape and four-footed limbs.

“The tetraxonia were a unique group of marine reptiles that dominated the Earth’s oceans during the Triassic period.”