Astacidea
| Astacidea Temporal range: Middle Permian - present | |
|---|---|
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| Adriatic lobster | |
 | |
| Crayfish: Austropotamobius pallipes | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Clade: | Reptantia |
| Infraorder: | Astacidea Latreille, 1802 |
| Superfamilies | |
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Astacidea is an infraorder of decapod crustaceans including lobsters (but not spiny lobsters), crayfish, and their close relatives.