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
†L. aurora Rudkin, Young & Nowlan, 2008
†L. borealis Lamsdell et. al., 2022
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.[1][2]
^David M. Rudkin, Graham A. Young & Godfrey S. Nowlan (2008). "The oldest horseshoe crab: a new xiphosurid from Late Ordovician Konservat-Lagerstätten deposits, Manitoba, Canada". Palaeontology. 51 (1): 1–9. doi:10.1111/j.1475-4983.2007.00746.x.
^Dunlop, J.A.; Penney, D.; Jekel, D. (2015). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Bern, CH. Natural History Museum Bern. Archived (PDF) from the original on 2023-12-16.
Lunataspis is the oldest known xiphosuran. It was first formally described by David Rudkin, Graham Young and Godfrey Nolan, from fossils found in northern...
after about three years of growth. The oldest known stem-Xiphosuran, Lunataspis, is known from the late Ordovician of Canada, around 445 million years...
436 to 428 million years ago, but in 2008 an older specimen described as Lunataspis aurora was reported from about 445 million years ago in the Late Ordovician...
oldest classes of marine arthropods. The oldest known horseshoe crab, Lunataspis aurora, 4 centimetres (1.6 in) from head to tail-tip, has been identified...
Markus J. (October 2022). "A new species of the Ordovician horseshoe crab Lunataspis". Geological Magazine: 1–5. doi:10.1017/S0016756822000875. ISSN 0016-7568...
Name Novelty Status Authors Age Unit Location Notes Images Lunataspis gen et sp nov Valid taxon Nowlan, Rudkin, & Young Late Ordovician Churchill River...
paleontology that occurred or were published in the year 2005. Fossils of Lunataspis, the earliest known xiphosuran, are discovered in Canada. It was not given...
Martin, M. J. (2022). "A new species of the Ordovician horseshoe crab Lunataspis". Geological Magazine. 160: 167–171. doi:10.1017/S0016756822000875. S2CID 252723542...
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