Era
Mz
Mesozoic
251.9020 – 66.0000 Ma
The Mesozoic Era is an era of Earth's geological history, lasting from about 252 to 66 million years ago (Ma), comprising the Triassic, Jurassic and Cretaceous Periods. It is characterized by the dominance of archosaurian reptiles such as the dinosaurs, and of gymnosperms such as cycads, ginkgoaceae and araucarian conifers; a hot greenhouse climate; and the tectonic break-up of Pangaea. The Mesozoic is the middle of the three eras since complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic.
← Geological time scale
© Joe Mabel · CC BY-SA 3.0
Fossil genera 2061
Turiasaurus
Dinosaurs
Valid
Extinct
0 occ.
Tylocephale
Dinosaurs
Valid
Extinct
0 occ.
Tylodorhynchus
Pterosaurs
Valid
0 occ.
Tyrannomimus
Dinosaurs
Valid
Extinct
0 occ.
Uberabatitan
Dinosaurs
Valid
Extinct
0 occ.
Udanoceratops
Dinosaurs
Valid
Extinct
0 occ.
Udelartitan
Dinosaurs
Valid
Extinct
0 occ.
Ugrunaaluk
Dinosaurs
Valid
Extinct
0 occ.
Uktenadactylus
Pterosaurs
Valid
Extinct
0 occ.
Ulughbegsaurus
Dinosaurs
Valid
Extinct
0 occ.
Umoonasaurus
Marine reptiles
Valid
Extinct
0 occ.
Unaysaurus
Dinosaurs
Valid
Extinct
0 occ.
Undorosaurus
Marine reptiles
Valid
Extinct
0 occ.
—
Undulatoolithus
Dinosaurs
Formal taxon
Extinct
0 occ.
Unenlagia
Dinosaurs
Valid
Extinct
0 occ.
—
Unescoceratops
Dinosaurs
Valid
Extinct
0 occ.
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News 4
Parent interval
Phanerozoic
Eon