Alalcomenaeus
| Alalcomenaeus Temporal range: | |
|---|---|
| Fossil holotype | |
| Life restoration | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Megacheira |
| Order: | †Leanchoilida |
| Family: | †Leanchoiliidae Simonetta & Delle Cave, 1975 |
| Genus: | †Alalcomenaeus Simonetta, 1970 |
| Species: | †A. cambricus |
| Binomial name | |
| †Alalcomenaeus cambricus Simonetta, 1970 | |
Alalcomenaeus is one of the most widespread and longest-surviving arthropod genera of the Early and Middle Cambrian. Known from over 300 specimens in the Burgess Shale and the Chengjiang biota. It is a member of the family Leanchoiliidae in the group Megacheira.