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Topic: Dissorophoidea


  
  Lissamphibia - Wikipedia, the free encyclopedia
Cylindrical centra (the main body of the vertebra; cylindrical centra are also found in several groups of early tetrapods)
Pedicellate teeth (the crown of the teeth is separated from the root by a zone of fibrous tissue; also found in some Dissorophoidea; the teeth of some fossil salamanders are not pedicellate)
Operculum (small bone in the skull, linked to shoulder girdle by the opercularis muscle; perhaps involved in hearing and balance; absent in caecilians and some salamanders, fused to the stapes (ear bones) in most anurans)
en.wikipedia.org /wiki/Lissamphibia   (439 words)

  
 Phylogeny and Apomorphies of Temnospondyls
Unnamed taxon: loss of the entepicondylar foramen of the humerus (when preserved); presence of the posterior coronoid of the mandible (except in the dvinosaurian Trimerorhachis) (Yates and Warren, 2000).
Dissorophoidea Bolt, 1969: exposure of the dorso-lateral margin of the palatine in the orbital margin; narial, prefrontal and supratympanic flanges; both large orbits and pineal foramen; and long and slender limb elements (when preserved) (Dilkes, 1990; Yates and Warren, 2000; Steyer, 2000).
Dilkes, D. A new Trematopsid Amphibian (Temnospondyli: Dissorophoidea) from the Lower Permian of Texas.
tolweb.org /accessory/Phylogeny_and_Apomorphies_of_Temnospondyls?acc_id=582   (1012 words)

  
 Euskelia   (Site not responding. Last check: 2007-10-10)
`-- †Syndyodosuchus tetricus Konzhukova, 1956 `--o †Dissorophoidea Boulenger, 1902 sensu Williston, 1910 [non Bolt, 1969] ?-o †Melosaurus Meyer, 1857 [Melosauridae Fritsch, 1885]
Schoch, R. R., 2004: Skeleton formation in the Branchiosauridae: a case study in comparing ontogenetic trajectories.
Witzmann, F. and Pfretzschner, H.-U., 2003: Larval ontology of Micromelerpeton credneri (Temnospondyli, Dissorophoidea).
www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/Amphibia/Euskelia/Euskelia.htm   (235 words)

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