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Abstract:

Saurosuchusgalilei Reig is a "rauisuchid" from the Ischigualasto For-mation (late Carnian, Late Triassic) located in central-western Argentina. This paper is the first detailed description of the proatlas-atlas-axis complex of this taxon, of a complete and articulated vertebral column, and of both scapulae. Overall morphology of the proatlas-atlas-axis complex is similar to that of other "rauisuchids". This complex and the post-axial cervical vertebrae show the typical traits of an animal with a short and strong neck. The cervical vertebrae are anteroposteriorly compressed and dorsoventrally elongated. Vertebral laminae, interlaminar depressions, and lateral depressions on the centra are present in the cervical and dorsal vertebrae, as in other "rauisuchids". The presacral series bears ventrally keeled centra and large transversal expansions of the distal ends of the neural spines. The caudal series shows axially compressed centra with a longitudinal ventral groove. The scapulae are very robust and have a brief expansion and a slightly curved scapular blade. The remarkable diversity of "rauisuchids" in general, makes a detailed analysis necessary in order to approach morphofunctional and phylogenetic problems; this new material is expected to contribute towards the solution of these problems.

Registro:

Documento: Artículo
Título:New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
Autor:Trotteyn, M.J.; Desojo, J.B.; Alcober, O.A.
Filiación:Instituto y Museo de Ciencias Naturales, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan, Av. España 400 (N), J5400DNQ San Juan, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Ángel Gallardo 470, C1405DRJ, Buenos Aires, Argentina
Idioma: Español
Palabras clave:Archosauria; Crurotarsi; Postcranial vertebral laminae; Postcranium; Rauisuchia; Saurosuchus; Triassic; cranium; fossil record; morphology; new record; paleoecology; paleontology; phylogenetics; reptile; Triassic; Argentia; Canada; Newfoundland; Newfoundland and Labrador; Animalia; Archosauria; Crurotarsi; Rauisuchia
Año:2011
Volumen:48
Número:1
Página de inicio:13
Página de fin:27
DOI: http://dx.doi.org/10.5710/AMGH.v48i1(265)
Título revista:Ameghiniana
Título revista abreviado:Ameghiniana
ISSN:00027014
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v48_n1_p13_Trotteyn

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Citas:

---------- APA ----------
Trotteyn, M.J., Desojo, J.B. & Alcober, O.A. (2011) . New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina . Ameghiniana, 48(1), 13-27.
http://dx.doi.org/10.5710/AMGH.v48i1(265)
---------- CHICAGO ----------
Trotteyn, M.J., Desojo, J.B., Alcober, O.A. "New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina " . Ameghiniana 48, no. 1 (2011) : 13-27.
http://dx.doi.org/10.5710/AMGH.v48i1(265)
---------- MLA ----------
Trotteyn, M.J., Desojo, J.B., Alcober, O.A. "New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina " . Ameghiniana, vol. 48, no. 1, 2011, pp. 13-27.
http://dx.doi.org/10.5710/AMGH.v48i1(265)
---------- VANCOUVER ----------
Trotteyn, M.J., Desojo, J.B., Alcober, O.A. New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina . Ameghiniana. 2011;48(1):13-27.
http://dx.doi.org/10.5710/AMGH.v48i1(265)