Part of speech: n.
Quotation: This clay marked what scientists call the K-T boundary, the junction between rocks in which the fossils of dinosaurs are found, and those above, in which dinosaur bones have been replaced by more modern creatures.
Author:
Roger Highfield
Article, document, publication, web site:
Telegraph Publishing location:
U.K.
Date of publication:
Feb. 2, 2006
This catchword has yet to be researched.