The Dino Directory
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Name A-Z
Select a letter to view dinosaurs whose name starts with that letter:
9 dinosaurs beginning with 'O'
| NAME (GENUS) | Years (million years ago) |  |
|---|---|---|
|
||
| Opisthocoelicaudia | 72 - 68 mya | |
| Ornithomimus | 74 - 65 mya | |
| Orodromeus | 74 - ? mya | |
| Oviraptor | 85 - 75 mya | |
| Oryctodromeus | 99 - 94 mya | |
| Ouranosaurus | 115 - 100 mya | |
| Ornitholestes | 150 - 144 mya | |
| Othnielia | 154 - 142 mya | |
| Omeisaurus | 169 - 159 mya |