Crocodile

Crocodiles were a species of reptile.

In ancient Egypt, Thoueris was capable of controlling the crocodiles in the Nile with her ring. The Doctor took her ring and used it to turn the crocodiles against her. (DWM: The Power of Thoueris!)

In 1947 India, A gigantic crocodile attempted to attack the Campbells' house, but Major Daker shot it dead. (NSA: Ghosts of India)

One planet was inhabited by six-legged, telepathic crocodiles. (DWA: The Crocodiles from the Mist)