Definition of Cretaceous period. Meaning of Cretaceous period. Synonyms of Cretaceous period

Here you will find one or more explanations in English for the word Cretaceous period. Also in the bottom left of the page several parts of wikipedia pages related to the word Cretaceous period and, of course, Cretaceous period synonyms and on the right images related to the word Cretaceous period.

Definition of Cretaceous period

Cretaceous period
Cretaceous Cre*ta"ceous (kr[-e]*t[=a]"sh[u^]s), a. [L. cretaceus, fr. creta chalk. See Crayon.] Having the qualities of chalk; abounding with chalk; chalky; as, cretaceous rocks and formations. See Chalk. Cretaceous acid, an old name for carbonic acid. Cretaceous formation (Geol.), the series of strata of various kinds, including beds of chalk, green sand, etc., formed in the Cretaceous period; -- called also the chalk formation. See the Diagram under Geology. Cretaceous period (Geol.), the time in the latter part of the Mesozoic age during which the Cretaceous formation was deposited.

Meaning of Cretaceous period from wikipedia

- The Cretaceous (IPA: /krɪˈteɪʃəs/ krih-TAY-shəss) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and...
- The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from...
- The Early Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name) is the earlier or lower of the two major divisions of the...
- species such as sea turtles and crocodilians. It marked the end of the Cretaceous period, and with it the Mesozoic era, while heralding the beginning of the...
- the end of the Cretaceous Period, the last period of the Mesozoic Era, and marks the beginning of the Paleogene Period, the first period of the Cenozoic...
- Jur****ic-Cretaceous boundary did not strongly impact most forms of life. The Cretaceous is the Phanerozoic's longest period and the last period of the Mesozoic...
- Indian and Atlantic oceans during the Cretaceous Period and the breakup of these continents over the same period, it came to be defined as the ocean bordered...
- youngest: Tri****ic Period (251.902 to 201.4 million years ago) Jur****ic Period (201.4 to 145 million years ago) Cretaceous Period (145 to 66 million years...
- the United Kingdom. The Cretaceous Period extends from circa 145 million years ago to 66 million years ago. During the Cretaceous, the late Paleozoic-early...
- from the end of the Cretaceous Period 66 Ma (million years ago) to the beginning of the Neogene Period 23.03 Ma. It is the first period of the Cenozoic Era...