cretaceous
Speech parts
1. cretaceous - Noun
2. cretaceous - Adjective
3. Cretaceous - Proper noun
Meaning
Having the qualities of chalk; abounding with chalk; chalky; as, cretaceous rocks and formations. See Chalk.
Source: Webster's dictionarySynonyms
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Examples
According to geologist Stefan Schmid, because the Western Alps underwent a metamorphic event in the Cenozoic Era while the Austroalpine peaks underwent an event in the Cretaceous Period, the two areas show distinct differences in nappe formations.
A few of the fossil sites mentioned in the chapter Jurassic also shed some light on the early Cretaceous beetle fauna (for example, the Yixian formation in Liaoning, North China).
Although fossils dating back to the Cretaceous and Palaeocene have been referred to the family by various authors, none of these fossils has been confirmed as belonging to the Rubiaceae.
Although several lineages became extinct during the faunal turnover at the end of the Cretaceous, multituberculates as a whole managed very successfully to cross the Cretaceous–Paleogene boundary and reached their peak of diversity during the Paleocene.
At the end of the Cretaceous, the Deccan traps and other volcanic eruptions were poisoning the atmosphere.
A Cretaceous time scale.