Lunataspis
Lunataspis is the oldest known xiphosuran. It was first formally described by David Rudkin, Graham Young and Godfrey Nolan, from fossils found in northern Manitoba, Canada in 2005; the deposit dates from the Late Ordovician, c. 445 million years ago.
| Lunataspis Temporal range:
Earliest Hirnantian | |
|---|---|
| Reconstruction of Lunataspis aurora (bottom left) and Lunataspis borealis (top right) | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Order: | Xiphosura |
| Suborder: | Xiphosurida |
| Genus: | †Lunataspis Rudkin, Young & Nowlan, 2008 |
| Type species | |
| †Lunataspis aurora Rudkin, Young & Nowlan, 2008 | |
| Species | |
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