crossopterygian
noun Etymology: New Latin Crossopterygii, subclass name, from Greek krossoi fringe + pterygion, diminutive of pteryg-, pteryx wing, fin; akin to Greek pteron wing — more at feather Date: 1861 any of a subclass (Crossopterygii) of bony fishes (as a coelacanth) that have paired fins suggesting limbs, that may be ancestral to the terrestrial vertebrates, and that are mostly extinct — called also lobe-fincrossopterygian adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Crossopterygian — Cros*sop ter*yg i*an (kr?s s?p t?r ?j? an), a. (Zo[ o]l.) Of or pertaining to the Crossopterygii. n. One of the Crossopterygii. [1913 Webster] || …   The Collaborative International Dictionary of English

  • crossopterygian — [krə säp΄tə rij′ē ən, kräsäp΄tə rij′ē ən] n. [< ModL Crossopterygii, name of the group (< Gr krossoi, fringe + pteryx, fin, wing: see PTERYGOID) + AN] any coelacanth: thought to be the precursors of amphibians …   English World dictionary

  • crossopterygian — /kro sop teuh rij ee euhn/, n. 1. any fish of the group Crossopterygii, extinct except for the coelacanth, regarded as being ancestral to amphibians and other land vertebrates. adj. 2. pertaining to or resembling a crossopterygian. [1860 65; < NL …   Universalium

  • crossopterygian — cros•sop•te•ryg•i•an [[t]krɒˌsɒp təˈrɪdʒ i ən[/t]] n. 1) pal any fish of the group Crossopterygii, extinct except for the coelacanth, and including the ancestors of amphibians and other land vertebrates 2) ich pal pertaining to or resembling a… …   From formal English to slang

  • crossopterygian — cros·sop·te·ryg·ian …   English syllables

  • crossopterygian — /krəˌsɒptəˈrɪdʒiən/ (say kruh.soptuh rijeeuhn) noun 1. any fish of the group Crossopterygii, all fossil except Latimeria chalumnae, allied to ancestors of amphibians and other land vertebrates. –adjective 2. of or relating to any fish of this… …   Australian English dictionary

  • crossopterygian — noun any fish of the order Crossopterygii; most known only in fossil form • Syn: ↑lobefin, ↑lobe finned fish • Hypernyms: ↑bony fish • Hyponyms: ↑coelacanth, ↑Latimeria chalumnae …   Useful english dictionary

  • Tetrapod — Taxobox name = Tetrapods fossil range = Late Devonian to Recent image width = 200px image caption = A Fire Salamander. regnum = Animalia phylum = Chordata subphylum = Vertebrata superclassis = Tetrapoda superclassis authority = Broili, 1913… …   Wikipedia

  • Paleozoic Era — or Palaeozoic Era Major interval of geologic time, с 543–248 million years ago. From the Greek for ancient life, it is the first era of the Phanerozoic Eon and is followed by the Mesozoic Era. It is divided into six periods: (from oldest to… …   Universalium

  • Cranial kinesis — is the term for significant movement of skull bones relative to each other in addition to movement at the joint between the upper and lower jaw. It is usually taken to mean relative movement between the upper jaw and the braincase[1]. Most… …   Wikipedia

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