Descripción del sincraneo de Ameiva Ameiva (Linnaeus) (Squamata, Teiidae)

Tedesco, María Esther; Krause, Lı́gia; Álvarez, Blanca Beatríz

doi:10.1590/s0101-81751999000400013

Cited by 9 publications

(21 citation statements)

References 2 publications

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“…Post-cranial identification is based on the works of Etheridge (1967), Hoffstetter and Gasc (1969) and Lécuru (1968Lécuru ( , 1969. Several other works were used to specifically identify the Dactyloidae (Etheridge and De Queiroz, 1988;Etheridge, 1959;Frost and Etheridge, 1989;Nicholson et al, 2012;Poe, 1998Poe, , 2004, the Scincidae (Greer, 1970;Rao and Ramaswami, 1952) and the Teidae (Kosma, 2004;Pujos et al, 2009;Tedesco et al, 1999).…”

Section: Methodsmentioning

confidence: 99%

Fossil and subfossil herpetofauna from Cadet 2 Cave (Marie-Galante, Guadeloupe Islands, F. W. I.): Evolution of an insular herpetofauna since the Late Pleistocene

Bochaton

Grouard

Cornette

et al. 2015

Comptes Rendus Palevol

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This study deals with the herpetofaunal fossil and subfossil remains from the Cadet 2 site (Marie-Galante, Guadeloupean Archipelago). This study provides new data concerning the herpetofaunal community since the Late Pleistocene by revealing the early local occurrence of some taxa (Eleutherodactylus sp., cf. Sphaerodactylus sp., Ameiva sp., cf. Capitellum mariagalantae, Anolis cf. ferreus, cf. Antillotyphlops sp., cf. Alsophis sp. and Colubroidea sp. 1) and possible Pleistocene extinctions (Boa sp. and Colubroidea sp. 2). Moreover, the first metric data for fossil Marie-Galante anoles show clear size stability throughout time. As regards the evolution of the island herpetofaunal biodiversity, our work points to the long-term stability of the fauna before human colonization and subsequently to the marked impact of human-caused environmental disturbances during colonial but also Pre-Columbian periods.

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Section: Methodsmentioning

confidence: 99%

Fossil and subfossil herpetofauna from Cadet 2 Cave (Marie-Galante, Guadeloupe Islands, F. W. I.): Evolution of an insular herpetofauna since the Late Pleistocene

Bochaton

Grouard

Cornette

et al. 2015

Comptes Rendus Palevol

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“…, see also MacLean, ; Lopez and Cabrera, ; Montero et al, ; Rodrigues et al, ; Rodrigues et al, ; Tarazona et al, ; Gauthier et al, ). The Teiidae shows the same widespread condition of cercosaurines (Presch, ; Tedesco et al, ). Harris () described that in P. stenolepis the premaxilla does not contact the frontal, but we found that in some specimens of P. stenolepis , the premaxilla briefly contacts the medial process of the frontal bone, separating the nasals.…”

Section: Discussionmentioning

confidence: 79%

Skull Morphology of the Lizard Ptychoglossus vallensis (Squamata: Alopoglossidae) With Comments on the Variation Within Gymnophthalmoidea

Morales

Peloso

García

et al. 2019

The Anatomical Record

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In recent years, major changes have been proposed for the phylogenetic relationships within the Gymnophthalmoidea, including the description of Alopoglossidae. Recent studies relied primarily on molecular data and have not accounted for evidence from alternative sources, such as morphology. In this study, we provide a detailed bone‐by‐bone description of the skull of Ptychoglossus vallensis and compare this species with other gymnophthalmoideans. The description was based on 10 cleared‐and‐stained specimens, four disarticulated skulls, and computed microtomography data of P. vallensis. Most recent phylogenetic hypothesis for the Gymnophthalmoidea was used as a framework to compare the skull of P. vallensis with other species of the Alopoglossidae, Gymnophthalmidae, and Teiidae. Marked similarities between alopoglossids and gymnophthalmids were observed in contrast to teiids, probably due to convergence generated by miniaturization. We also qualitatively analyzed the kinesis of the skull of P. vallensis concluding that is highly akinetic, a trait commonly evolved in fossorial, primarily burrowing squamates. We also describe one unique osteological feature for Alopoglossidae that is not known in any other squamate group. Anat Rec, 302:1074–1092, 2019. © 2018 Wiley Periodicals, Inc.

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“…Because the suture between the prootic and otooccipital is completely fused, it was not possible to determine whether the anterior edge of fenestra ovalis is formed by the prootic, as has been considered by some authors for Tupinambis merianae (e.g., Barberena et al, 1970), for other Teiidae (Alvarez et al, 1987;Tedesco et al, 1999), and other lizards (Oelrich, 1956;Torres-Carvajal, 2002;Bell et al, 2003; Conrad, 2004;Bever et al, 2005). To clarify this point, it is necessary to examine specimens where the prootic/ opisthotic is still not fused but where the growth to this level has already ceased.…”

Section: Braincasementioning

confidence: 99%

A new Teiidae species (Squamata, Scincomorpha) from the Late Pleistocene of Rio Grande do Sul State, Brazil

Hsiou¹

2007

RBP

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-The fossil record of the Teiidae in South America is restricted almost exclusively to the Cenozoic, with the group mainly represented by Tupinambis during Miocene-Holocene times. Currently, this genus includes the largest lizards of the New World as well as the largest members of the family. Tupinambis uruguaianensis nov. sp., the first fossil squamate from Rio Grande do Sul State, is represented by a right lower jaw, basicranium, three dorsal vertebrae, and a left radius and ulna of the same individual. The material comes from the Touro Passo Formation, where reptiles were previously represented only by Testudines. The new species shares several characters with the living species of Tupinambis, but is distinguished from all them by an articular bone with a deeply concave ventral margin, angular process is more rounded, proportionally larger and projecting beyond the ventral and posterior adjacent limits, and a very protuberant adductor crest so that the lateral articular bone surface is lateroventrally directed.Key words: Squamata, Teiidae, Tupinambis, Late Pleistocene, Rio Grande do Sul State, southern Brazil.RESUMO -O registro da família Teiidae na América do Sul é restrito quase que exclusivamente ao Cenozóico e o grupo é principalmente representado por Tupinambis, no intervalo Mioceno-Holoceno. Atualmente este gênero inclui os maiores lagartos do Novo Mundo e os maiores membros da família. Tupinambis uruguaianensis sp. nov. é o primeiro Squamata registrado para o Pleistoceno final do Estado do Rio Grande do Sul, Brasil. O material inclui uma hemimandíbula direita, basicrânio, três vértebras dorsais, rádio e ulna esquerdos de um mesmo indivíduo, procedentes da Formação Touro Passo, cujos répteis eram antes representados apenas por Testudines. A nova espécie compartilha muitos caracteres das espécies recentes de Tupinambis, mas distingue-se de todas elas pelo articular com margem ventral marcadamente côncava; processo angular mais arredondado e proporcionalmente maior, projetando-se para além dos limites ventral e posterior adjacentes; e pela crista adutora muito proeminente, resultando numa face lateral do articular voltada látero-ventralmente.Palavras-chave: Squamata, Teiidae, Tupinambis, Pleistoceno final, Rio Grande do Sul, sul do Brasil.

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Descripción del sincraneo de Ameiva Ameiva (Linnaeus) (Squamata, Teiidae)

Cited by 9 publications

References 2 publications

Fossil and subfossil herpetofauna from Cadet 2 Cave (Marie-Galante, Guadeloupe Islands, F. W. I.): Evolution of an insular herpetofauna since the Late Pleistocene

Fossil and subfossil herpetofauna from Cadet 2 Cave (Marie-Galante, Guadeloupe Islands, F. W. I.): Evolution of an insular herpetofauna since the Late Pleistocene

Skull Morphology of the Lizard Ptychoglossus vallensis (Squamata: Alopoglossidae) With Comments on the Variation Within Gymnophthalmoidea

A new Teiidae species (Squamata, Scincomorpha) from the Late Pleistocene of Rio Grande do Sul State, Brazil

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