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| Malabarba,Maria Claudia; Lundberg,John G.. |
| A new loricariid catfish is described from the Tremembé Formation (Late Oligocene to Early Miocene) sediments of the Taubaté Basin in eastern São Paulo State, Brazil. Taubateia paraiba, new genus and species, is based on a single specimen preserved as a ventral-side impression of an articulated partial neurocranium, dorsal elements of the pectoral girdle and anterior vertebrae. The fossil is identified as belonging to family Loricariidae based on obvious overall similarity and the presence of diagnostic derived characters such as: odontodes, dorsal margin of metapterygoid contacting lateral ethmoid, presence of mesethmoid disk (condyle), and compound pterotic-supracleithrum bone. Also, as in most loricariids, the ossified transcapular (Baudelot's) ligament... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tremembé Formation; Fossil loricariid; Oligocene-Miocene; Neurocranium; Taubateia paraiba; Anterior vertebrae. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300005 |
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| Mollen, F.H.; Bakel , B.W.M. van; Jagt, J.W.M.. |
| A detailed redescription of a chondrocranium from the basal Boom Clay Formation (Rupelian, Upper Oligocene) at the SVK clay pit, Sint-Niklaas (province of Oost-Vlaanderen, Belgium), previously assigned to the sawshark Pristiophorus rupeliensis, is presented. The chondrocranium is re-identified as that of an angel shark (Squatinidae), based on comparative anatomy of extant Squatina, inclusive of CT scans of Squatina africana, S. australis, S. dumeril, S. guggenheim and S. squatina, with different geographic distributions and representing all four angel shark clades as defined in a previous molecular study. Differential characters for chondrocrania listed in earlier accounts to discriminate angel shark species from the southwest Atlantic proved to be even... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Chondrocranium; CT scanning; Neurocranium; Pristiophorus; Squatina; Vertebrae. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/607684 |
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| Baranowski,Piotr; Pezinska-Kijak,Katarzyna; Felska-Blaszczyk,Lidia; Zuk,Krzysztof; Nowak,Piotr; Kosecka,Joanna; Oczeretko,Kamila; Chukwu,Peter; Mazur,Pawel. |
| This study aimed at answering the question whether production of new colour variants of American mink in mink farms using mutations may entail changes in skull morphology and relationships between the bone elements building it. Analyses were made on the skulls of 56 eight-month-old males and females of two American mink colour variants (standard Brown and mutant Sapphire) from the same farm. Mean values, standard deviations and coefficients of variation were determined for carcass weight, cranial and mandibular weights and 7 dorsal surface, 8 lateral surface and 11 basal surface traits of the skull. The values of 24 cranial and mandibular indices and the values of sexual size dimorphism (SSD), i.e. a coefficient describing differences between sexes, were... |
| Tipo: Journal article |
Palavras-chave: Biometry; Neovison vison; Viscerocranium; Neurocranium; Skull. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300024 |
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| Cirpan,Sibel; Aksu,Funda; Mas,Nuket. |
| The Inca bones are rarely seen among other inter sutural bones and are accepted as variants of the normal. The incidence of the Inca bones has been researched in different populations. The aim of this study was to investigate the rate and types of the Inca bones in West Anatolian population. One hundred fifty-one skulls of West Anatolian subjects of unknown ages and sex were examined. None of the specimens showed signs of prior cranial surgery, bony malformation or trauma. The skulls were classified as adults with teeth eruption. The Inca bones were macroscopically determined and analysed. The samples were photoghraphed with Canon 400B (55 mm objective). We follow previous criteria and nomenclatures of the Inca bones. The incidence of Inca bones of... |
| Tipo: Journal article |
Palavras-chave: Neurocranium; Sutural bones; Inca bones; West Anatolia. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100045 |
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| Klenovšek, T.; Jojić, V.. |
| We explored modularity and morphological integration of the ventral cranium during postnatal ontogeny in Martino’s vole (Dinaromys bogdanovi). Two closely related phylogenetic groups, originating from the Central and Southeastern part of the species range in the western Balkans, were considered. As expected, both phylogroups had similar patterns of ontogenetic changes in cranial size and shape variation, modularity and integration. At the level of within individual variation, the hypothesis that the viscerocranial and neurocranial regions are separate modules was rejected, indicating that the hypothesized modules are not developmental, but rather functional. At the level of among individual variation, the viscerocranium and the neurocranium could not be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Allometry; Fluctuating asymmetry; Geometric morphometrics; Neurocranium; Ontogeny; Ventrviscerocranium; Viscerocranium. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/613890 |
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| Montes Domínguez,Héctor M; González Isáis,Mónica. |
| Skeleton of batoids has been important to outline kinship relations in this group. Therefore, the objective of this work is describing the anatomy of five species of genus Urotrygon. Skeleton of Urotrygonids displayed a common morphological pattern, with the following differences: 1) preorbital processes are reduced in Urotrygon nana and Urotrygon munda, and developed on all other species; 2) the first postorbital process is reduced in U. nana and U. munda; 3) the first hypobranchial cartilage is fragmented only in Urotrygon rogersi; 4) only Urotrygon aspidura had a bridge in the basibranchial cartilage; lateral processes of the synarcuale in U. aspidura are long and thin, while short and wide in U. nana and U. rogersi; 6) U. nana has only one single... |
| Tipo: Journal article |
Palavras-chave: Batoids; Urotrygonidae; Urotrygon; Neurocranium; Skeleton. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300006 |
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