Paradoxides

Paradoxides

▪ trilobite genus
      genus of trilobites (an extinct group of arthropods) found as fossils in Middle Cambrian rocks of North America and western Europe (the Cambrian Period lasted from 540 to 505 million years ago). Paradoxides has a well-developed head region terminating laterally in pointed spines that vary in development from species to species; the tail region is poorly developed. The body is well-segmented, and the axial lobe tapers to the minuscule pygidium (tail). Some species of Paradoxides attained large size (45 cm, or 18 inches). Paradoxides is useful in correlating Middle Cambrian rocks and time.

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Universalium. 2010.

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Look at other dictionaries:

  • Paradoxides — Par a*dox i*des, n. [NL.] (Paleon.) A genus of large trilobites characteristic of the primordial formations. [1913 Webster] …   The Collaborative International Dictionary of English

  • Paradoxĭdes — Paradoxĭdes, Gattung aus der Familie der Trilobiten; findet sich vorzüglich im Übergangskalk; Arten: P. gibbosus, P. laciniatus u.a …   Pierer's Universal-Lexikon

  • Paradoxĭdes — Paradoxĭdes, s. Trilobiten …   Meyers Großes Konversations-Lexikon

  • Paradoxides — Paradoxĭdes, Gattg. der Trilobiten; wichtig als Leitfossil für das Untersilur ist der P. bohemĭcus Burm. [Abb. 1331] …   Kleines Konversations-Lexikon

  • Paradoxides — Taxobox name = Paradoxides image width = 240px image caption = Paradoxides davidis regnum = Animalia phylum = Arthropoda classis = Trilobita ordo = Redlichiida subordo = Redlichiina familia = Paradoxididae genus = Paradoxides subdivision ranks =… …   Wikipedia

  • Paradoxides davidis — Taxobox name = Paradoxides davidis status = Fossil image width = 240px regnum = Animalia phylum = Arthropoda classis = Trilobita ordo = Redlichiida familia = Paradoxididae genus = Paradoxides species = P. davidis binomial = Paradoxides davidis… …   Wikipedia

  • Paradoxides Series — ▪ geology       rocks deposited during the Middle Cambrian Period in western Europe and Scandinavia and in eastern North America (the Middle Cambrian Period lasted from 520 to 512 million years ago). The Paradoxides Series is characterized by the …   Universalium

  • Paradoxides — Trilobite daté du Cambrien, ayant une suture jugale opistopariée. Présence de pointes génales, glabelle sillonnée vers l avant, petit pygidium cylindrique, 16 à 20 segments (métamères) Catégorie : Trilobite …   Wikipédia en Français

  • paradoxides — par·a·dox·i·des …   English syllables

  • paradoxides — ˌ ̷ ̷ ̷ ̷ˈdäksəˌdēz noun Usage: capitalized Etymology: New Latin, from Latin paradoxum paradox + ides : a genus of trilobites of the Middle Cambrian having from 17 to 20 free segments, a large cephalic shield, and a very small pygidium and… …   Useful english dictionary

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