The Dino Directory
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Name A-Z
Select a letter to view dinosaurs whose name starts with that letter:
41 dinosaurs beginning with 'A'
| NAME (GENUS) | Years (million years ago) |  |
|---|---|---|
|
||
| Azendohsaurus | 227 - 221 mya | |
| Avalonia | 210 - 205 mya | |
| Aardonyx | 200 - 190 mya | |
| Ammosaurus | 195 - 180 mya | |
| Anchisaurus | 190 - ? mya | |
| Amygdalodon | 177 - 169 mya | |
| Agilisaurus | 169 - 159 mya | |
| Apatosaurus | 154 - 145 mya | |
| Allosaurus | 153 - 135 mya | |
| Archaeopteryx | 147 - ? mya | |
| Afrovenator | 132 - 121 mya | |
| Amargasaurus | 132 - 127 mya | |
| Aragosaurus | 132 - 121 mya | |
| Archaeoceratops | 121 - 99 mya | |
| Atlascopcosaurus | 121 - 97 mya | |
| Acrocanthosaurus | 115 - 105 mya | |
| Austrosaurus | 112 - 99 mya | |
| Achillobator | 99 - 84 mya | |
| Antarctopelta | 99 - 94 mya | |
| Aegyptosaurus | 98 - 93 mya | |
| Archaeornithomimus | 95 - 70 mya | |
| Aralosaurus | 94 - 84 mya | |
| Alectrosaurus | 90 - 70 mya | |
| Argentinosaurus | 90 - ? mya | |
| Alvarezsaurus | 89 - 85 mya |