Esqueleto pré-sacral e sacral dos lagartos teiêdeos (Squamata, Teiidae)

Veronese, Lauren Betina; Krause, Lı́gia

doi:10.1590/s0101-81751997000100002

Cited by 13 publications

(17 citation statements)

References 6 publications

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“…A number of morphological characters support the division of Teiidae (sensu Presch) into two groups, Teiinae and Tupinambinae, including external morphology ( Vanzolini and Valencia, 1965), chromosomes ( Gorman, 1970), osteology ( Presch, 1974 andVeronese andKrause, 1997), and myology ( Rieppel, 1980). In support of this view, we identified two unique traits distinguishing Teiinae from Tupinambinae: presence of five sets of mitochondrial tiers and ring structures, and dense bodies fused in the ring structures in the Teiinae.…”

Section: Discussionsupporting

confidence: 58%

“…Aspidoscelis was recently resurrected by Reeder et al (2002), based on molecular, allozymic, and morphological data, comprising the whiptails from Central and North America (deppii, sexlineata, and tigris groups). Despite several attempts to clarify the relationships among teiid genera using morphological data ( Vanzolini and Valencia, 1965, Gorman, 1970, Presch, 1974, Rieppel, 1980, Veronese and Krause, 1997and Moro and Abdala, 2000, this issue is still largely unresolved.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of sperm ultrastructure of five species of teiid lizards (Teiidae, Squamata), and Cercosaura ocellata (Gymnophthalmidae, Squamata)

Colli¹,

Teixeira²,

Scheltinga³

et al. 2007

Tissue and Cell

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Sperm ultrastructure of five teiid lizards (Callopistes flavipunctatus, Crocodilurus amazonicus, Dicrodon guttulatum, Dracaena guianensis, and Teius oculatus), and the gymnophthalmid Cercosaura ocellata is described for the first time. Comparisons of sperm ultrastructure among these species and with those of previously examined teiids and gymnophthalmids revealed that the two groups of Teiioidea (Gymnophthalmidae and Teiidae), and the two subfamilies of Teiidae (Teiinae and Tupinambinae) could be distinguished on the basis of sperm ultrastructure data. Significant differences in sperm dimensions between Cnemidophorus and Aspidoscelis support the recent splitting of these two lineages into different genera. Our results revealed high levels of inter-generic variability in sperm ultrastructure within Teiidae, which produces a data set useful in analyzing relationships between genera and families. In phylogenetic analyses, however, sampling multiple species within teiid genera is essential and recording sperm measurements may profitably complement qualitative ultrastructural characters, maximizing the information content of these structures.

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Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Comparative study of sperm ultrastructure of five species of teiid lizards (Teiidae, Squamata), and Cercosaura ocellata (Gymnophthalmidae, Squamata)

Colli¹,

Teixeira²,

Scheltinga³

et al. 2007

Tissue and Cell

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“…In the dog, this joint is located on the dorsal cranial portion of the rump, i.e., in the middle region of the pelvis (Burk & Feeney 2003). There are reports in the literature about the presence of cervical ribs in other species of mammals, such as humans (Silvestri et al 2005) and dolphins (Fettuccia & Simões 2004), and in reptiles, such as the teiidae lizards (Veronese & Krause 1997) and Brazilosaurus sanpauloensis (Sedor & Ferigolo 2001). These ribs receive this nomenclature because they are present in cervical vertebrae.…”

Section: Discussionmentioning

confidence: 99%

Morphological evaluation of the thoracic, lumbar and sacral column of the giant anteater (Myrmecophaga tridactyla Linnaeus, 1758)

Borges

Cruz²,

Fares³

et al. 2017

Pesq. Vet. Bras.

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This study aimed to describe the number of thoracic, lumbar and sacral vertebrae in tridactyla through radiographic examinations associated with gross anatomy determination. For this purpose, 12 adult specimens of M. tridactyla were analyzed, assigned to the Screening Center of Wild Animals (CETAS), IBAMA-GO, and approved by the Ethics Committee on the Use of Animals (Process CEUA-UFG nr 018/2014). In the radiographic examinations the following numbers of thoracic (T) and lumbar (L) vertebrae were observed: 16Tx2L (n=7), 15Tx2L (n=3), and 15Tx3L (n=2). In contrast, the numbers of vertebrae identified by anatomical dissection were as follows: 16Tx2L (n=4), 15Tx2L (n=3), and 15Tx3L (n=5). This difference occurred in cases of lumbarization of thoracic vertebrae, as seen in three specimens, and was explained by changes in regional innervations identified by anatomical dissection and the presence of floating ribs (right unilateral=1, left unilateral=1 and bilateral=1), which were not identified by radiographic exams. Regarding the sacral vertebrae there was no variation depending on the methods used, which allowed the identification of 4 (n=1) or 5 (n=11) vertebrae. Thus, we concluded that there is variation in the number of thoracic, lumbar and sacral vertebrae, in addition to lumbarization, which must be considered based on the presence of floating ribs, in this species.

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“…Também de acordo com esse raciocínio, Nascimento (2008) identificou três vérte-bras lombares em um Baurusuchidae do grupo Mesoeucrocodylia do cretáceo superior e Mook (1921) também observou três lombares em um estudo com várias espécies de Crocodylia. Em outras espécies de répteis esse número pode ser reduzido a uma única vértebra lombar, como em teiídeos (Veronese & Krause 1997) ou estar completamente ausente, como em L. arambarensis (Silva & Verrastro 2007) e Trachemys dorbignyi (Souza et al 2000).…”

Section: Esqueleto Axial Pós-cranialunclassified

Osteologia de Melanosuchus niger (Crocodylia: Alligatoridae) e a evidência evolutiva

et al. 2016

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RESUMO.-O objetivo foi realizar a descrição anatômica do esqueleto de Melanosuchus niger, com o intuito de contribuir com informações evolutivas sobre a espécie. Utilizaram-se três espécimes adultos de M. niger, com comprimento médio de 2,40m, provenientes da coleção biológica do Lapas-UFU. Na cintura peitoral, a escápula é maior do que o coracóide. Já nos elementos da cintura pelvina, o púbis não participa da formação do acetábulo, o contato com o ilío, ocorre por ligamentos, e sua articulação com o ísquio, permite movimentos dorso-ventrais. The objective was an anatomical description of the skeleton of Melanosuchus niger, in order to contribute with evolutionary information about the species. Three adult specimens of M. niger with an average length of 2.40m were used, originating from the biologic collection of Lapas-UFU. In the forelimb, the scapula is bigger than the coracoid. Regarding the hindlimbs, the pubic does not participate in the formation of the acetabulum; the contact with the ilium is made by ligaments, and its articulation with the rump allows dorsal-ventral movements. Regarding the forelimbs, the humerus is a stylopodium element, and the ulna and radius a zeugopodium element. The carpus exibits the ulnar-radial+intermedium fusion, fusion of the distal carpals 3+4+5, and the pisiform. It has five metacarpals, numbered lateromedially as metacarpal 1, 2, 3, 4, and 5. The phalangeal formula is 2:3:4:3:2. Regarding the pelvic limbs, the stylopodium is formed by the femur, and the zeugopodium by tibia and fibula. In tarsus has four bones: fusion of the intermedium+centrale, fibulare, distal tarsal 3, and distal tarsal 4. It has four long metatarsals I, II, III and IV, with metatarsal II and III being relatively longer than the others. Metatarsal V is a very small bone; the feet have the phalangeal formula 2:3:4:4. At the skull, the nasal opening is only the palatine bones, vomer, pterygoid, premaxilla and maxilla forming the bone structure of the secondary palate; the parietal bone is the only element on the cranial roof. In the pos-axial skeleton ist distinct pairs of ribs which articulate with the cervical, dorsal, lumbar, sacral and caudal vertebrae. The gastralia consists of seven rows of fine bone located between the pubic bone and caudal part of the sternum.

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Esqueleto pré-sacral e sacral dos lagartos teiêdeos (Squamata, Teiidae)

Cited by 13 publications

References 6 publications

Comparative study of sperm ultrastructure of five species of teiid lizards (Teiidae, Squamata), and Cercosaura ocellata (Gymnophthalmidae, Squamata)

Comparative study of sperm ultrastructure of five species of teiid lizards (Teiidae, Squamata), and Cercosaura ocellata (Gymnophthalmidae, Squamata)

Morphological evaluation of the thoracic, lumbar and sacral column of the giant anteater (Myrmecophaga tridactyla Linnaeus, 1758)

Osteologia de Melanosuchus niger (Crocodylia: Alligatoridae) e a evidência evolutiva

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