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Abstract:

In 1969, Bonaparte described a new dicynodont, Vinceria andina, from the early Middle Triassic Cerro de las Cabras Formation of central-western Argentina (Potrerillos, Mendoza). Later, this author mentioned two additional specimens from the same beds, but they were never figured and/or described until now. Years later, another specimen identified as Vinceria sp. was briefly described from a different locality and stratigraphic level (Early-Middle Triassic Puesto Viejo Group, southern Mendoza). Vinceria has alternatively been considered to be related to the South African Kannemeyeria or to the shansiodontids from China, Tanzania, South Africa and Russia. Moreover, some authors considered Vinceria andina as a junior synonym of Kannemeyeria argentinensis. A recent phylogenetic analysis on Triassic dicynodonts, including Vinceria and the shansiodontids, resulted in a basal position of this group in relation to the other Triassic dicynodonts, the kannemeyeriiforms. Nevertheless, the interrelationships of Shansiodontidae remain poorly understood. This situation is partially due to the lack of accurate descriptions of the poorly known specimens. The present paper is an exhaustive analysis of all materials once referred to Vinceria, plus some undescribed specimens, thus providing detailed anatomical descriptions and accurate figures of one of the putative basal members of the clade Kannemeyeriiformes. As a result, Vinceria is considered as a valid taxon that includes two species, V. andina and V. vieja nov. sp. Comparisons among the species of Vinceria and other shansiodontids question the characters used to justify the monophyly of the group. © 2012.

Registro:

Documento: Artículo
Título:The Triassic dicynodont Vinceria (Therapsida, Anomodontia) from Argentina and a discussion on basal Kannemeyeriiformes
Autor:Domnanovich, N.S.; Marsicano, C.A.
Filiación:Laboratorio de Paleontología de Vertebrados, Departamento de Ciencias Geologicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IDEAN-CONICET, Ciudad Universitaria, Intendente Güiraldes 2160, C1428EGA Ciudad Autónoma de Buenos Aires, Buenos Aures, Argentina
Palabras clave:Argentina; Dicynodontia; Shansiodontidae; Triassic; Vinceria; phylogeny; relatedness; reptile; taxonomy; Triassic; type specimen; Argentina; Mendoza; Potrerillos; Anomodontia; Dicynodontia; Kannemeyeria; Kannemeyeria argentinensis; Therapsida
Año:2012
Volumen:45
Número:2
Página de inicio:173
Página de fin:186
DOI: http://dx.doi.org/10.1016/j.geobios.2011.03.003
Título revista:Geobios
Título revista abreviado:Geobios
ISSN:00166995
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166995_v45_n2_p173_Domnanovich

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Citas:

---------- APA ----------
Domnanovich, N.S. & Marsicano, C.A. (2012) . The Triassic dicynodont Vinceria (Therapsida, Anomodontia) from Argentina and a discussion on basal Kannemeyeriiformes. Geobios, 45(2), 173-186.
http://dx.doi.org/10.1016/j.geobios.2011.03.003
---------- CHICAGO ----------
Domnanovich, N.S., Marsicano, C.A. "The Triassic dicynodont Vinceria (Therapsida, Anomodontia) from Argentina and a discussion on basal Kannemeyeriiformes" . Geobios 45, no. 2 (2012) : 173-186.
http://dx.doi.org/10.1016/j.geobios.2011.03.003
---------- MLA ----------
Domnanovich, N.S., Marsicano, C.A. "The Triassic dicynodont Vinceria (Therapsida, Anomodontia) from Argentina and a discussion on basal Kannemeyeriiformes" . Geobios, vol. 45, no. 2, 2012, pp. 173-186.
http://dx.doi.org/10.1016/j.geobios.2011.03.003
---------- VANCOUVER ----------
Domnanovich, N.S., Marsicano, C.A. The Triassic dicynodont Vinceria (Therapsida, Anomodontia) from Argentina and a discussion on basal Kannemeyeriiformes. Geobios. 2012;45(2):173-186.
http://dx.doi.org/10.1016/j.geobios.2011.03.003