| Eryonidae Temporal range: | |
|---|---|
| | |
| Eryon acrtiformis | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Superfamily: | Eryonoidea |
| Family: | † Eryonidae De Haan, 1841 |
| Genera | |
Eryonidae is a family of fossil decapod crustaceans which lived from the Upper Triassic to the Lower Cretaceous. [1] It contains four genera: [2] An aggregation of three unidentified eryonids was reported in 2012 inside a Late Jurassic ammonoid of the species Harpoceras falciferum ; they represent the earliest evidence of gregarious behaviour in decapods. [3]