Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of cretaceous is as below...

Elasmosaurus :: Elasmosaurus (n.) An extinct, long-necked, marine, cretaceous reptile from Kansas, allied to Plesiosaurus..

Liriodendron :: Liriodendron (n.) A genus of large and very beautiful trees of North America, having smooth, shining leaves, and handsome, tuliplike flowers; tulip tree; whitewood; -- called also canoewood. Liriodendron tulipifera is the only extant species, but there were several others in the Cretaceous epoch..

Hippurite :: Hippurite (n.) A fossil bivalve mollusk of the genus Hippurites, of many species, having a conical, cup-shaped under valve, with a flattish upper valve or lid. Hippurites are found only in the Cretaceous rocks..

Turonian :: Turonian (n.) One of the subdivisions into which the Upper Cretaceous formation of Europe is divided.

Inoceramus :: Inoceramus (n.) An extinct genus of large, fossil, bivalve shells,allied to the mussels. The genus is characteristic of the Cretaceous period..

Cretaceously :: Cretaceously (adv.) In a chalky manner; as chalk.

Ichthyosauria :: Ichthyosauria (n. pl.) An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period..

Wealden :: Wealden (a.) Of or pertaining to the lowest division of the Cretaceous formation in England and on the Continent, which overlies the Oolitic series..

Hesperornis :: Hesperornis (n.) A genus of large, extinct, wingless birds from the Cretaceous deposits of Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species are known. See Illust. in Append..

Neocomian :: Neocomian (n.) A term applied to the lowest deposits of the Cretaceous or chalk formation of Europe, being the lower greensand..

Rudistes :: Rudistes (n. pl.) An extinct order or suborder of bivalve mollusks characteristic of the Cretaceous period; -- called also Rudista. See Illust. under Hippurite.

Parkeria :: Parkeria (n.) A genus of large arenaceous fossil Foraminifera found in the Cretaceous rocks. The species are globular, or nearly so, and are of all sizes up to that of a tennis ball..

Mosasaurus :: Mosasaurus (n.) A genus of extinct marine reptiles allied to the lizards, but having the body much elongated, and the limbs in the form of paddles. The first known species, nearly fifty feet in length, was discovered in Cretaceous beds near Maestricht, in the Netherlands..

Galerite :: Galerite (n.) A cretaceous fossil sea urchin of the genus Galerites.

Senonian :: Senonian (a.) In european geology, a name given to the middle division of the Upper Cretaceous formation..

Supercurious :: Supercretaceous (a.) Same as Supracretaceous.

Hadrosaurus :: Hadrosaurus (n.) An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation..

Gault :: Gault (n.) A series of beds of clay and marl in the South of England, between the upper and lower greensand of the Cretaceous period..

Cretose :: Cretose (a.) Chalky; cretaceous.

Colorado Group :: Colorado group () A subdivision of the cretaceous formation of western North America, especially developed in Colorado and the upper Missouri region..

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