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Temporal range: HirnantianPresent, 445–0 Ma
Atlantic horseshae crab (Limulus polyphemus)
Scientific classification e
Kinrick: Animalia
Phylum: Arthropoda
Clade: Prosomapoda
Order: Xiphosura
Latreille, 1802

Xiphosurans are an order o arthropods relatit tae arachnids, or, accordin tae ane recent study, actually arachnids.[1]

References[eedit | eedit soorce]

  1. Sharma, Prashant P.; Ballesteros, Jesús A. (14 February 2019). "A Critical Appraisal of the Placement of Xiphosura (Chelicerata) with Account of Known Sources of Phylogenetic Error". Systematic Biology (in Inglis). doi:10.1093/sysbio/syz011.