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Abstract:

Tritylodon longaevus Owen, 1884 is one of the most common members of the Lower Jurassic faunas of the Karoo Basin. The cranial and dental anatomy of this taxon is well known, but its postcranium has not been previously addressed in detail. Our analysis shows that T. longaevus shares many postcranial features with other tritylodontids that distinguish them from other non-mammaliaform cynodonts. The correlation between taxon size and postcranial anatomical traits is briefly explored among tritylodontids, showing that few morphological differences among species correlate with size. Analysis of the purported oldest remains of Tritylodon, from the Norian Los Colorados Formation of Argentina, suggests that they cannot be unambiguously assigned to this taxon, circumscribing the record of Tritylodon to African localities.

Registro:

Documento: Artículo
Título:The Postcranial Skeleton of the Lower Jurassic Tritylodon Longaevus from Southern Africa
Autor:Gaetano, L.C.; Abdala, F.; Govender, R.
Filiación:Departamento de Ciencias Geológicas, FCEyN, Instituto de Estudios Andinos 'Don Pablo Groeber', IDEAN, Universidad de Buenos Aires, CONICET, Intendente Güiraldes 2160, Pabellón II, Ciudad Autónoma de Buenos Aires, C1428EGA, Argentina
Evolutionary Studies Institute, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg, 2050, South Africa
Iziko South African Museum, PO Box 61, 25 Queen Victoria Street, Cape Town, 8000, South Africa
Palabras clave:Eucynodontia; Lower Jurassic; Postcranium; Tritylodon longaevus; anatomy; cranium; dentition; fossil record; Jurassic; morphology; Norian; paleoecology; skeleton; tetrapod; Argentina
Año:2017
Volumen:54
Número:1
Página de inicio:1
Página de fin:35
DOI: http://dx.doi.org/10.5710/AMGH.11.09.2016.3011
Título revista:Ameghiniana
Título revista abreviado:Ameghiniana
ISSN:00027014
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_00027014_v54_n1_p1_Gaetano

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Citas:

---------- APA ----------
Gaetano, L.C., Abdala, F. & Govender, R. (2017) . The Postcranial Skeleton of the Lower Jurassic Tritylodon Longaevus from Southern Africa. Ameghiniana, 54(1), 1-35.
http://dx.doi.org/10.5710/AMGH.11.09.2016.3011
---------- CHICAGO ----------
Gaetano, L.C., Abdala, F., Govender, R. "The Postcranial Skeleton of the Lower Jurassic Tritylodon Longaevus from Southern Africa" . Ameghiniana 54, no. 1 (2017) : 1-35.
http://dx.doi.org/10.5710/AMGH.11.09.2016.3011
---------- MLA ----------
Gaetano, L.C., Abdala, F., Govender, R. "The Postcranial Skeleton of the Lower Jurassic Tritylodon Longaevus from Southern Africa" . Ameghiniana, vol. 54, no. 1, 2017, pp. 1-35.
http://dx.doi.org/10.5710/AMGH.11.09.2016.3011
---------- VANCOUVER ----------
Gaetano, L.C., Abdala, F., Govender, R. The Postcranial Skeleton of the Lower Jurassic Tritylodon Longaevus from Southern Africa. Ameghiniana. 2017;54(1):1-35.
http://dx.doi.org/10.5710/AMGH.11.09.2016.3011