Cucumericrus
| Cucumericrus Temporal range:  | |
|---|---|
| Trunk appengade of Cucumericrus decoratus | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Stem group: | Arthropoda | 
| Genus: | †Cucumericrus Hou, Bergstrom & Ahlberg, 1995 | 
| Type species | |
| Cucumericrus decoratus Hou, Bergstrom & Ahlberg, 1995 | |
Cucumericrus ("cucumber-leg") is an extinct genus of stem-arthropod. The type and only species is Cucumericrus decoratus, with fossils discovered from the Maotianshan Shales of Yunnan, China.