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Genus of horseshoe crab relatives
Lunataspis is the oldest known xiphosuran, with three known species all dating from the late Ordovician (latest Sandbian for L. borealis, Katian for L
Lunataspis
Order of marine chelicerates
are currently undescribed. The oldest currently named stem-xiphosuran, Lunataspis, is known from the late Ordovician of Canada, around 445 million years
Xiphosura
Genus of primitive horseshoe crab
general, the anatomy is indermediate between the earlier Ordovician genus Lunataspis and late Devonian genera such as Patesia and Picketta. The rounded prosoma
Ciurcalimulus
Subphylum of arthropods
Life restoration of species of Lunataspis a genus of xiphosuran (the broader group which includes horseshoe crabs), dating to the Late Ordovician, around
Chelicerata
Order of arthropods (fossil)
†Camanchia †Legrandella Xiphosura †Kasibelinurus †Willwerathia Xiphosurida †Lunataspis †Belinurina Limulidae Planaterga †Pseudoniscus †Cyamocephalus †Pasternakevia
Eurypterid
Family of basal chelicerates
Ordovician, around 480 million years ago. Ordovician xiphosurans, such as Lunataspis, already bear a close resemblance to living horseshoe crabs. The earliest
Horseshoe_crab
Extinct genus of arthropods
†Camanchia †Legrandella Xiphosura †Kasibelinurus †Willwerathia Xiphosurida †Lunataspis †Belinurina Limulina Planaterga †Pseudoniscus †Cyamocephalus †Pasternakevia
Offacolus
Species of arthropod
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
Atlantic_horseshoe_crab
Extinct genus of arthropods
†Camanchia †Legrandella Xiphosura †Kasibelinurus †Willwerathia Xiphosurida †Lunataspis †Belinurina Limulina Planaterga †Pseudoniscus †Cyamocephalus †Pasternakevia
Borchgrevinkium
Formation United States ( Indiana) The type species is C. discobolus. Lunataspis gundersoni Sp. nov Lamsdell et al. Ordovician (Katian) Big Hill Formation
2025 in arthropod paleontology
2025_in_arthropod_paleontology
Species of horseshoe crab relative
Xiphosura †Kasibelinurus amicorum †Patesia randalli †Lunataspis aurora †Belinuridae ⊞ ⊟ †Belinurus trilobitoides †Belinurus bellulus †Anacontium carpenteri
Austrolimulus
Lunataspis aurora, an early xiphosuran known in two sites
List_of_lagerstätten
Markus J. (October 2022). "A new species of the Ordovician horseshoe crab Lunataspis". Geological Magazine: 1–5. doi:10.1017/S0016756822000875. ISSN 0016-7568
Gull_River_Formation
1992 Preoccupied N/A N/A Preoccupied name, changed to Maldybulakia. †Lunataspis Young & Nowlan 2008 Valid Ordovician Canada †Maldybulakia Tesakov & Alekseev
List_of_xiphosuran_genera
Geologic formation in Michigan
chasmataspidid. Carcinosomatidae indet. A carcinosomatid eurypterid. Dolichopteridae indet. A dolichopterid eurypterid. Lunataspis L. gundersoni A xiphosuran.
Big_Hill_Formation
Extinct monotypic genus of Carboniferous arthropods
Xiphosura †Kasibelinurus amicorum †Patesia randalli †Lunataspis aurora †Pickettia carteri †Bellinuroopsis rossicus †Rolfeia fouldenensis †Paleolimulidae
Prolimulus
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
2005_in_paleontology
Name Novelty Status Authors Age Unit Location Notes Images Lunataspis gen et sp nov Valid taxon Nowlan, Rudkin, & Young Late Ordovician Churchill River
2008_in_paleontology
Martin, M. J. (2022). "A new species of the Ordovician horseshoe crab Lunataspis". Geological Magazine. 160: 167–171. doi:10.1017/S0016756822000875. S2CID 252723542
2022 in arthropod paleontology
2022_in_arthropod_paleontology
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