New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina

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...

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Autores principales: Trotteyn, M.J., Desojo, J.B., Alcober, O.A.
Formato: JOUR
Lenguaje:Spanish
Materias:
Archosauria
Crurotarsi
Postcranial vertebral laminae
Postcranium
Rauisuchia
Saurosuchus
Triassic
cranium
fossil record
morphology
new record
paleoecology
paleontology
phylogenetics
reptile
Argentia
Canada
Newfoundland
Newfoundland and Labrador
Animalia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00027014_v48_n1_p13_Trotteyn
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00027014_v48_n1_p13_Trotteyn
record_format dspace
spelling todo:paper_00027014_v48_n1_p13_Trotteyn2023-10-03T13:53:09Z New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina Trotteyn, M.J. Desojo, J.B. Alcober, O.A. 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 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. Fil:Desojo, J.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR Spanish info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00027014_v48_n1_p13_Trotteyn
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Spanish
orig_language_str_mv Spanish
topic 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
spellingShingle 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
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
topic_facet 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
description 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.
format JOUR
author Trotteyn, M.J.
Desojo, J.B.
Alcober, O.A.
author_facet Trotteyn, M.J.
Desojo, J.B.
Alcober, O.A.
author_sort Trotteyn, M.J.
title New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
title_short New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
title_full New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
title_fullStr New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
title_full_unstemmed New postcranial material of saurosuchus galilei reig (Archosauria: Crurotarsi) from the late triassic of Central-Western Argentina
title_sort new postcranial material of saurosuchus galilei reig (archosauria: crurotarsi) from the late triassic of central-western argentina
url http://hdl.handle.net/20.500.12110/paper_00027014_v48_n1_p13_Trotteyn
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AT desojojb newpostcranialmaterialofsaurosuchusgalileireigarchosauriacrurotarsifromthelatetriassicofcentralwesternargentina
AT alcoberoa newpostcranialmaterialofsaurosuchusgalileireigarchosauriacrurotarsifromthelatetriassicofcentralwesternargentina
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