Cenoman












































































System
Oddział
Piętro
 Wiek (mln lat)

Paleogen
Paleocen
Dan
młodsze

Kreda
Górna
Mastrycht
 66,0–72,1

Kampan
 72,1–83,6

Santon
 83,6–86,3

Koniak
 86,3–89,8

Turon
 89,8–93,9

Cenoman
 93,9–100,5

Dolna
Alb
 100,5–113,0

Apt
 113,0–125,0

Barrem
 125,0–129,4

Hoteryw
 129,4–132,9

Walanżyn
 132,9–139,8

Berrias
 139,8–145,0

Jura
Górna
Tyton
starsze
Podział według IUGS, luty 2017

Cenoman (ang. Cenomanian)


  • w sensie geochronologicznym: najstarszy wiek późnej kredy w erze mezozoicznej, trwający 6,6 milionów lat (od 100,5 do 93,9 mln lat). Cenoman jest młodszy od albu a starszy od turonu.

  • w sensie chronostratygraficznym: najniższe piętro górnej kredy, wyższe od albu a niższe od turonu.

Stratotyp dolnej granicy cenomanu znajduje się na Mont Risou koło Rosans (Hautes-Alpes, Francja). Granica oparta jest na pierwszym pojawieniu się otwornicy Rotalipora globotruncanoides Sigal, 1948.
Nazwa pochodzi od łacińskiej nazwy miasta Le Mans we Francji – Cenomanum.



Bibliografia |


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Zobacz hasło cenoman w Wikisłowniku


  • tabela stratygraficzna

  • kreda













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