sarcopterygian


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sar·cop·te·ryg·i·an

 (sär-kŏp′tə-rĭj′ē-ən)
[From New Latin Sarcopterygiī, class name : sarco- + Greek pterugion, fin, diminutive of pterux, pteryg-, wing; see pterygoid.]
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pustulosus, the scales and bones of the head and shoulder girdle, as well as isolated teeth of porolepiform sarcopterygian fishes including Glyptolepis sp.
A three-dimensional reconstruction of the basal sarcopterygian coelacanth Aqp4 channel, based upon the structure mask of the crystallographically resolved human AQP4 ortholog (Protein Data Bank 3GD8), shows that this arrangement is evolutionarily conserved (Fig.
Our current knowledge is based only on two members of this clade, representing two important laboratory models: the Zebrafish, an actinopterygian, and mouse, a sarcopterygian tetrapod.
the transition from sarcopterygian fish to tetrapods; the appearance of birds from theropod dinosaurs; the origins of the three-boned, mammalian ear and the emergence of whales from terrestrial, "superficially wolf-like hoofed predators" (p.
Vertebrates are well represented by a rich ichthyofauna (Beltan, 1972, 1975, 1984; Cartanya, 1999) with at least 12 actinopterygian families and the sarcopterygian Alcoveria (Beltan, 1972).
In addition, acanthodian fish scales and a portion of a fin spine, and numerous actinopterygian and sarcopterygian fish scales and tips of actinopterygian teeth from the MNSC were identified by Kenaga and Sellepack (1995).
Fish otoliths are the specialized hard parts of the actinopterygian and sarcopterygian acoustico-lateralis system, situated in the membranous labyrinths in the otic capsules of the neurocranium.
He decided that such a fin spine could not belong to an actinopterygian or to a sarcopterygian, but had a similar shape with some acanthodian spines.
Pakhnevich found a uniquely preserved natural external mould of the ventral side of the skull of an osteolepiform sarcopterygian Eusthenodon sp.
The fish assemblage contains also acanthodians, the sarcopterygian Porolepis kureikensis (Vorobyeva 1963) and the actinopterygian (palaeoniscoid) Dialipina markae, found in the eastern part of the Tunguska syneclise, Kotuj River basin (Schultze 1992).
This conglomerate layer corresponds to the 1st oryctocoenosis represented mainly by separate compactly lying bones including large and very large plates, sometimes partly articulated skeletons and aggregates of sarcopterygian scales, as well as many fragments of bones.