Period
K
Cretaceous
143.1000 – 66.0000 Ma
The Cretaceous is a geological period that lasted from about 143.1 to 66 Ma. It is the third and final period of the Mesozoic Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin creta, 'chalk', which is abundant in deposits from the latter half of the period. It is usually abbreviated K, for its German translation Kreide.
← Geological time scale
© Scotese, Christopher R.; Vérard, Christian; Burgener, Landon; Elling, Reece P.; Kocsis, Ádám T. · CC BY 4.0
Fossil genera 1363
Makhaira
Marine reptiles
Valid
Extinct
0 occ.
—
Malarguesaurus
Dinosaurs
Valid
Extinct
0 occ.
Malawania
Marine reptiles
Valid
Extinct
0 occ.
Malawisaurus
Dinosaurs
Valid
Extinct
0 occ.
Malefica
Dinosaurs
Valid
Extinct
0 occ.
Manemergus
Marine reptiles
Valid
Extinct
0 occ.
Mansourasaurus
Dinosaurs
Valid
Extinct
0 occ.
Mapusaurus
Dinosaurs
Valid
Extinct
0 occ.
Marambionectes
Marine reptiles
Valid
Extinct
0 occ.
Marisaurus
Dinosaurs
Valid
Extinct
0 occ.
Martharaptor
Dinosaurs
Valid
Extinct
0 occ.
Martinectes
Marine reptiles
Valid
Extinct
0 occ.
Masiakasaurus
Dinosaurs
Valid
Extinct
0 occ.
Matheronodon
Dinosaurs
Valid
Extinct
0 occ.
Mauriciosaurus
Marine reptiles
Valid
Extinct
0 occ.
Maxakalisaurus
Dinosaurs
Valid
Extinct
0 occ.
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News 43
Parent interval
Mesozoic
Era