Definition of Permo–Triassic in English:

Permo–Triassic

Line breaks: Permo–Triassic

adjective

Geology
  • 1Relating to or denoting the boundary of the Permian and Triassic periods, about 245 million years ago. Mass extinctions occurred at this time, marking the end of the Palaeozoic era.
  • 1.1 (as noun the Permo–Triassic or Permo–Trias) The Permian and Triassic periods together or the system of rocks deposited during them.

More definitions of Permo–Triassic

Definition of Permo–Triassic in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day skosh
Pronunciation: skōSH
noun
a small amount; a little