Meanings
- A period of the Mesozoic era, between the Jurassic and the Upper Cretaceous periods, lasting from 145–100.5 millions of years ago.
There is a very general unconformity and break between the Lower and Upper Cretaceous; this has led Chamberlin and Salisbury to suggest that the Lower Cretaceous should be regarded as a separate period with the title "Comanchean."
[1911, “Cretaceous System”, in Encyclopædia Britannica, 11th edition, volume 7, New York, N.Y.: Encyclopædia Britannica, Inc., page 415Synonyms: Early Cretaceous, Lower Cretaceous
Synonyms & antonyms
proper nounA period of the Mesozoic era, between the Jurassic and the Upper Cretaceous periods, lasting from 145–100.5 millions of years ago.
Origin
From Comanche (“a city in Texas”) + -ean.
Full word history & related roots →Cite this entry
Comanchean. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Comanchean
“Comanchean.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Comanchean. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “Comanchean,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Comanchean.
Source: Comanchean on Wiktionary, CC BY-SA 4.0.