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Universalium. 2010.
xiphosuran — [zif΄ə soor′ən, zif΄ōsyoor′ən] n. [< Gr xiphos, sword + oura, tail: see URO 2] any of an order (Xiphosura) of arthropods made up of the horseshoe crabs and related extinct forms adj. of or pertaining to this order … English World dictionary
xiphosuran — 1. noun Any member of the order Xiphosura, including horseshoe crabs. 2. adjective Of or pertaining to the order Xiphosura … Wiktionary
xiphosuran — horseshoe crab Unusual Animals … Phrontistery dictionary
xiphosuran — xiph·os·uran … English syllables
xiphosuran — /zɪfəˈsjurən/ (say zifuh syoohruhn) adjective 1. of or relating to the horseshoe crabs (order Xiphosura). –noun 2. a member of the order Xiphosura; a horseshoe crab. {New Latin Xiphosūra (irregularly from Greek xiphos sword + oura tail) + an} …
xiphosuran — adjective or noun see xiphosura … Useful english dictionary
Pseudoniscus — Temporal range: Silurian … Wikipedia
xiph|o|sure — «ZIHF uh sur», noun. = xiphosuran. (Cf. ↑xiphosuran) … Useful english dictionary
Chelicerata — Temporal range: 445–0 Ma … Wikipedia
Thoracetron — is an entire plate formed by the fusion of opisthosomal tergites behind opercular tergite (free abdominal segments) in Xiphosura of the order Xiphosurida, being considered a synapomorphy for this order (Anderson Selden, 1997). The order… … Wikipedia
