Titre du document / Document title
Westlothiana lizziae from the Viséan of East Kirkton, West Lothian, Scotland, and the amniote stem
Auteur(s) / Author(s)
SMITHSON T. R. (1) ;
CARROLL R. L. ;
PANCHEN A. L. ;
ANDREWS S. M. ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Cambridge regional coll., Cambridge CB5 8EG, ROYAUME-UNI
Résumé / Abstract
Westlothiana lizziae is known from the Brigantian of East Kirkton, Scotland. The skull resembles that of later amniotes in the large size of the parietal, the apparent loss of the intertemporal, and the absence of a squamosal notch, palatal fangs and labyrinthine infolding of the marginal teeth, but is primitive in the absence of a transverse flange of the pterygoid. The individual trunk vertebrae resemble those of amniotes; large intercentra are retained, but the neural arch is fused to the centrum. A surprising feature is the presence of 36 presacral vertebrae, as is the relative size of the very small but highly ossified limbs. The humerus is much shorter than the femur, but similar in configuration to that of early amniotes
Revue / Journal Title
Transactions of the Royal Society of Edinburgh. Earth sciences
ISSN
0263-5933
CODEN TRSSDZ
Source / Source
Congrès
Volcanism and early terrestrial biotas. Conference, Edinburgh
, ROYAUME-UNI
(23/09/1992)
1993, vol. 84 (3-4) (66 ref.), pp. 383-412
Langue / Language
Anglais
Editeur / Publisher
Royal Society of Edinburgh, Edinburgh, ROYAUME-UNI
(1980)
(Revue)
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Localisation / Location
INIST-CNRS, Cote INIST : 167, 35400002573393.0220
Nº notice refdoc (ud4) : 3959522
