Ciurcalimulus
| Ciurcalimulus | |
|---|---|
| Holotype and only known fossil of Ciurcalimulus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Order: | Xiphosura |
| Genus: | †Ciurcalimulus Lamsdell, 2025 |
| Type species | |
| †Ciurcalimulus discobolus Lamsdell, 2025
| |
Ciurcalimulus is a genus of xiphosuran from the Silurian-aged Wabash Formation of Indiana, United States. It is one of the earliest known relatives of horseshoe crabs in the fossil record, informing understanding of their early diversification.