Origin of cretaceous
Related formscre·ta·ceous·ly, adverbnon·cre·ta·ceous, adjectivepost·cre·ta·ceous, adjectivesu·per·cre·ta·ceous, adjective
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