Reptilian /(-an)/

Rep·til·i·an

Reptilian

a.
  1. Belonging to the reptiles.

Phrases & Compounds
Reptilian age
that part of geological time comprising the Triassic, Jurassic, and Cretaceous periods, and distinguished as that era in which the class of reptiles attained its highest expansion; -- called also the Secondary or Mezozoic age.

Reptilian

n.
  1. One of the Reptilia; a reptile. (Zool.)