Origin of cretaceous
Examples from the Web for cretaceous
Species much like Rhinobatus occur in the Cretaceous and Eocene.A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan
There are some very remarkable instances of this in the Cretaceous deposits.
The Mesozoic time certainly terminated with the Cretaceous, and what follows belongs to a distinct aeon.The Story of the Earth and Man|J. W. Dawson
The great volcanic outbursts which produced this trap commenced in the Cretaceous period and lasted on into the Eocene period.
Showers of milk are explained by cretaceous matter carried into the air by whirlwinds.A World of Wonders|Various
British Dictionary definitions for cretaceous (1 of 2)
Word Origin for cretaceous
British Dictionary definitions for cretaceous (2 of 2)
Word Origin and History for cretaceous
1670s, "chalky," from Latin cretaceus "chalk-like," from creta "chalk." As a geological period (with a capital C-), it was first used 1832. The extensive chalk beds of southeastern England were laid down during the Cretaceous.