| Harpactocarcinus Temporal range: Cretaceous to Miocene,
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| Harpactocarcinus punctulatus at the Houston Museum of Natural Science | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Section: | Eubrachyura |
| Subsection: | Heterotremata |
| Superfamily: | Carpilioidea |
| Family: | †Zanthopsidae |
| Genus: | †Harpactocarcinus A. Milne-Edwards, 1862 |