词条 | Prosomapoda |
释义 |
}}Prosomapoda is a clade of chelicerates including the groups Xiphosura and Planaterga, as well as several basal stem-genera.[1] References1. ^{{Cite journal|last=Lamsdell|first=James C.|date=2012-12-18|title=Revised systematics of Palaeozoic 'horseshoe crabs' and the myth of monophyletic Xiphosura|journal=Zoological Journal of the Linnean Society|language=en|volume=167|issue=1|pages=1–27|doi=10.1111/j.1096-3642.2012.00874.x|issn=0024-4082}} {{Chelicerata-stub}} 2 : Chelicerates|Middle Ordovician first appearances |
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