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, 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
Fossil genera 48
Grallator
Grallator
Dinosaurs
Ichnogenus Extinct
195 occ.
Paronychodon
Paronychodon
Dinosaurs
Valid Extinct
136 occ.
Eubrontes
Eubrontes
Dinosaurs
Ichnogenus Extinct
132 occ.
Camarasaurus
Camarasaurus
Dinosaurs
Valid Extinct
107 occ.
Allosaurus
Allosaurus
Dinosaurs
Valid Extinct
106 occ.
Iguanodon
Iguanodon
Dinosaurs
Valid Extinct
101 occ.
Triceratops
Triceratops
Dinosaurs
Valid Extinct
101 occ.
Richardoestesia
Richardoestesia
Dinosaurs
Valid Extinct
100 occ.
Brontopodus
Brontopodus
Dinosaurs
Ichnogenus Extinct
91 occ.
Saurornitholestes
Saurornitholestes
Dinosaurs
Valid Extinct
68 occ.
Stegosaurus
Stegosaurus
Dinosaurs
Valid Extinct
68 occ.
Massospondylus
Massospondylus
Dinosaurs
Valid Extinct
68 occ.
Caririchnium
Caririchnium
Dinosaurs
Ichnogenus Formal taxon Extinct
64 occ.
Apatosaurus
Apatosaurus
Dinosaurs
Valid Extinct
59 occ.
Anomoepus
Anomoepus
Dinosaurs
Ichnogenus Extinct
57 occ.
Diplodocus
Diplodocus
Dinosaurs
Valid Extinct
54 occ.
Ichthyosaurus
Ichthyosaurus
Marine reptiles
Valid Extinct
52 occ.
Megalosaurus
Megalosaurus
Dinosaurs
Valid Extinct
48 occ.
Troodon
Troodon
Dinosaurs
Valid Extinct
48 occ.
Pteraichnus
Pteraichnus
Pterosaurs
Ichnogenus Formal taxon Extinct
47 occ.
Edmontosaurus
Edmontosaurus
Dinosaurs
Valid Extinct
45 occ.
Prognathodon
Prognathodon
Marine reptiles
Valid Extinct
45 occ.
Parabrontopodus
Parabrontopodus
Dinosaurs
Ichnogenus Formal taxon Extinct
43 occ.
Megalosauripus
Megalosauripus
Dinosaurs
Ichnogenus Extinct
43 occ.
Hadrosauropodus
Hadrosauropodus
Dinosaurs
Ichnogenus Formal taxon Extinct
41 occ.
Mosasaurus
Mosasaurus
Marine reptiles
Valid Extinct
40 occ.
Anchisauripus
Anchisauripus
Dinosaurs
Ichnogenus Formal taxon Extinct
39 occ.
Platecarpus
Platecarpus
Marine reptiles
Valid Extinct
38 occ.
Zalmoxes
Zalmoxes
Dinosaurs
Valid Extinct
37 occ.
Psittacosaurus
Psittacosaurus
Dinosaurs
Valid Extinct
37 occ.
Nothosaurus
Nothosaurus
Marine reptiles
Valid Extinct
34 occ.
Camptosaurus
Camptosaurus
Dinosaurs
Valid Extinct
32 occ.
Amblydactylus
Amblydactylus
Dinosaurs
Ichnogenus Formal taxon Extinct
31 occ.
Plesiosaurus
Plesiosaurus
Marine reptiles
Valid Extinct
29 occ.
Deltapodus
Deltapodus
Dinosaurs
Ichnogenus Formal taxon Extinct
29 occ.
Tenontosaurus
Tenontosaurus
Dinosaurs
Valid Extinct
29 occ.
Kayentapus
Kayentapus
Dinosaurs
Ichnogenus Extinct
29 occ.
Tarbosaurus
Tarbosaurus
Dinosaurs
Valid Extinct
28 occ.
Dromaeosaurus
Dromaeosaurus
Dinosaurs
Valid Extinct
27 occ.
Platypterygius
Platypterygius
Marine reptiles
Valid Extinct
27 occ.
Tylosaurus
Tylosaurus
Marine reptiles
Valid Extinct
26 occ.
Tetrapodosaurus
Tetrapodosaurus
Dinosaurs
Ichnogenus Formal taxon Extinct
26 occ.
Thescelosaurus
Thescelosaurus
Dinosaurs
Valid Extinct
24 occ.
Cetiosaurus
Cetiosaurus
Dinosaurs
Valid Extinct
24 occ.
Saurolophus
Saurolophus
Dinosaurs
Valid Extinct
23 occ.
Ceratosaurus
Ceratosaurus
Dinosaurs
Valid Extinct
23 occ.
Pliosaurus
Pliosaurus
Marine reptiles
Valid Extinct
22 occ.
Stenopterygius
Stenopterygius
Marine reptiles
Valid Extinct
22 occ.
Parent interval
Phanerozoic Eon
Sub-intervals 3
Triassic Tr
251.9020 – 201.4000
Jurassic J
201.4000 – 143.1000
Cretaceous K
143.1000 – 66.0000