Share this entry

Share this page

Permo–Triassic

Line breaks: Permo–Triassic

Definition of Permo–Triassic in English:

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.

Definition of Permo–Triassic in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day tenebrous
Pronunciation: ˈtenəbrəs
adjective
dark; shadowy or obscure