Meanings of cretaceous in English

As you may imagine, I find that on the cretaceous crustaceans very interesting.

These caves are hollowed out of a very thick belt of cretaceous limestone.

The Athabasca here cuts through a cretaceous sandstone,-soft ,yellowish ,homogeneous

The dark red, or black astringent wines, are produced upon the white marls and cretaceous limestone.

Poole rests by the creek where the gorge opens quite abruptly on to a vast cretaceous plain.

The hard siliceous mineral had been torn loose from chalk deposits laid down during the cretaceous period.

Pliocene, miocene, eocene, cretaceous, jurassic, triassic, permian, carboniferous, devonian, silurian, or primitive was all one to me.

The geology of this neighborhood was interesting-Oliveirafound fossil tree-trunkswhich he believed to be of cretaceous age.

Tells about a weevil from which cretaceous DNA was extracted by the Berkley entomologist George O. Poinair, Jr.

Thus in its main features the Valley of the Amazons, like that of the Mississippi, is a cretaceous basin.

She looks leathery, primitive, cretaceous.

He was inclined, from the character of the shells, to believe that the coal must be cretaceous rather than tertiary.

The number of fossil remains comprised in these collections is very considerable; mastodons especially, and fossils of the cretaceous and jurassic deposits.

Reference should also be made to the extensive researches of Newberry upon the tertiary and cretaceous floras of the Western United States.

The chambered shells called ammonites and belemnites, which are so characteristic of the period preceding the cretaceous, in like manner die with it.

Flintcomb-Ash being in the middle of the cretaceous tableland over which no railway had climbed as yet, it would be necessary to walk.