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Metoposaurid and mastodonsaurid stereospondyls from the Triassic - Jurassic boundary of Portugal
Titel:
Metoposaurid and mastodonsaurid stereospondyls from the Triassic - Jurassic boundary of Portugal
Auteur:
Witzmann, Florian Gassner, Thomas
Verschenen in:
Alcheringa
Paginering:
Jaargang 32 (2008) nr. 1 pagina's 37-51
Jaar:
2008-03
Inhoud:
Witzmann, F. & Gassner, T., March, 2008. Metoposaurid and mastodonsaurid stereospondyls from the Triassic - Jurassic boundary of Portugal. Alcheringa 32, 37-51. ISSN 0311-5518. Remains of stereospondyl amphibians from the Triassic - Jurassic boundary of the Algarve, southern Portugal, are described for the first time. They consist of several intercentra of different sizes, ribs and fragments of the scapular girdle and the skull. The opisthocoelous morphology of some of the disc-like intercentra and the presence of a lateral flange on the clavicle indicate that parts of the material can be referred unambiguously to metoposaurid stereospondyls, representing the first evidence of this group from the Iberian Peninsula. Several other disc-like intercentra that are amphicoelous and thinner than those of the metoposaurids can be referred to mastodonsaurid stereospondyls (either Mastodonsaurus or Cyclotosaurus). The fossil locality is situated in a palaeorift system that linked the known metoposaurid localities in eastern North America, Morocco, and Central Europe.
Uitgever:
Taylor & Francis
Bronbestand:
Elektronische Wetenschappelijke Tijdschriften
Details van artikel 112 van 206 gevonden artikelen
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