Artigo

The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)

The objective of this study is to describe the skull and abdominal skeleton of the lizard Stenocercus dumerilii (Steindachner, 1867), with emphasis on those characters used in phylogenetic studies involving the genus Stenocercus. The peculiar shape of the head (pyramidal, with a distinct canthal-sup...

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Autor principal: Hernández-Ruz, Emil José
Outros Autores: Ávila-Pires, Teresa Cristina Sauer de
Grau: Artigo
Idioma: English
Publicado em: Museu Paraense Emílio Goeldi 2010
Assuntos:
Acesso em linha: http://repositorio.museu-goeldi.br/handle/mgoeldi/121
id ir-mgoeldi-121
recordtype dspace
spelling ir-mgoeldi-1212019-07-17T17:51:46Z The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania) Crânio e esqueleto abdominal de Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania) Hernández-Ruz, Emil José Ávila-Pires, Teresa Cristina Sauer de Iguania Cranial osteology Abdominal skeleton Stenocercus dumerilii Osteologia craniana Esqueleto abdominal Squamata Reptilia The objective of this study is to describe the skull and abdominal skeleton of the lizard Stenocercus dumerilii (Steindachner, 1867), with emphasis on those characters used in phylogenetic studies involving the genus Stenocercus. The peculiar shape of the head (pyramidal, with a distinct canthal-superciliary ridge that ends in a prominent postsupraciliary scale) results in part from the shape of the prefrontal and postfrontal bones, both of which bear protuberances projecting towards the orbital cavity. The postfrontal bone represents the highest point of the cranium. Contrary to what has been observed in other species of Stenocercus and in most Tropiduridae, the studied specimens of S. dumerilii presented a single pair of xiphisternal inscriptional ribs (followed by a pair of posterior xiphisternal processes). Besides, they presented five pairs of postxiphisternal inscriptional ribs widely separated ventrally. One specimen (of two studied) showed the pineal foramen completely enclosed by the frontal instead of in frontoparietal suture. 2010-09-23T00:52:23Z 2010-09-23T00:52:23Z 2008-09 artigo HERNÁNDEZ-RUZ, Emil Jos; AVILA-PIRES, Teresa Cristina Sauer. The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania). Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, Belém, v. 3, n. 3, p. 203-216, set.- dez. 2008. Disponível em: < http://www.museu-goeldi.br/editora/bn/naturais_v3n3(2008).html > Acesso em: 30 mar. 2009 1981-8114 http://repositorio.museu-goeldi.br/handle/mgoeldi/121 en application/pdf Museu Paraense Emílio Goeldi
institution Repositório Institucional - Museu Paraense Emílio Goeldi
collection RepositorioEmilioGoeldi
language English
topic Iguania
Cranial osteology
Abdominal skeleton
Stenocercus dumerilii
Osteologia craniana
Esqueleto abdominal
Squamata
Reptilia
spellingShingle Iguania
Cranial osteology
Abdominal skeleton
Stenocercus dumerilii
Osteologia craniana
Esqueleto abdominal
Squamata
Reptilia
Hernández-Ruz, Emil José
The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
topic_facet Iguania
Cranial osteology
Abdominal skeleton
Stenocercus dumerilii
Osteologia craniana
Esqueleto abdominal
Squamata
Reptilia
description The objective of this study is to describe the skull and abdominal skeleton of the lizard Stenocercus dumerilii (Steindachner, 1867), with emphasis on those characters used in phylogenetic studies involving the genus Stenocercus. The peculiar shape of the head (pyramidal, with a distinct canthal-superciliary ridge that ends in a prominent postsupraciliary scale) results in part from the shape of the prefrontal and postfrontal bones, both of which bear protuberances projecting towards the orbital cavity. The postfrontal bone represents the highest point of the cranium. Contrary to what has been observed in other species of Stenocercus and in most Tropiduridae, the studied specimens of S. dumerilii presented a single pair of xiphisternal inscriptional ribs (followed by a pair of posterior xiphisternal processes). Besides, they presented five pairs of postxiphisternal inscriptional ribs widely separated ventrally. One specimen (of two studied) showed the pineal foramen completely enclosed by the frontal instead of in frontoparietal suture.
format Artigo
author Hernández-Ruz, Emil José
author2 Ávila-Pires, Teresa Cristina Sauer de
author2Str Ávila-Pires, Teresa Cristina Sauer de
title The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
title_short The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
title_full The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
title_fullStr The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
title_full_unstemmed The skull and abdominal skeleton of Stenocercus dumerilii (Steindachner, 1867) (Reptilia: Squamata: Iguania)
title_sort skull and abdominal skeleton of stenocercus dumerilii (steindachner, 1867) (reptilia: squamata: iguania)
publisher Museu Paraense Emílio Goeldi
publishDate 2010
url http://repositorio.museu-goeldi.br/handle/mgoeldi/121
_version_ 1787135782956302336
score 11.755432