The Dino Directory
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Dino Timeline
The first dinosaurs appeared around 225 million years ago (mya) in a time known as the Mesozoic Era. Scientists divide this era into 3 periods: the Triassic, Jurassic and Cretaceous.
Select a section of the timeline below to see dinosaurs that lived then.
151 Late Cretaceous dinosaurs
| NAME (GENUS) | Years (million years ago) |  |
|---|---|---|
|
||
| Lophorhothon | 84 - 71 mya | |
| Magyarosaurus | 71 - 65 mya | |
| Maiasaura | 80 - 75 mya | |
| Majungatholus | 84 - 71 mya | |
| Mapusaurus | 99 - 94 mya | |
| Masiakasaurus | 84 - 71 mya | |
| Maxakalisaurus | 80 - ? mya | |
| Microceratops | 86 - 66 mya | |
| Micropachycephalosaurus | 84 - 71 mya | |
| Mononykus | 81 - 68 mya | |
| Nanotyrannus | 67 - 65 mya | |
| Nanshiungosaurus | 84 - 71 mya | |
| Nemegtosaurus | 72 - 68 mya | |
| Neuquenosaurus | 71 - 65 mya | |
| Nipponosaurus | 89 - 84 mya | |
| Noasaurus | 84 - 65 mya | |
| Nomingia | 72 - 68 mya | |
| Nothronychus | 94 - 89 mya | |
| Opisthocoelicaudia | 72 - 68 mya | |
| Ornithomimus | 74 - 65 mya | |
| Orodromeus | 74 - ? mya | |
| Oryctodromeus | 99 - 94 mya | |
| Oviraptor | 85 - 75 mya | |
| Pachycephalosaurus | 76 - 65 mya | |
| Pachyrhinosaurus | 76 - 74 mya |