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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Comparative neurocranial morphology of angelsharks from the south-western Atlantic Ocean (Chondrichthyes, Elasmobranchii, Squatinidae): implications for taxonomy and phylogeny

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Author(s):
de Carvalho, Marcelo R. [1] ; Faro, Caio [2] ; Gomes, Ulisses L. [2]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Zool, Inst Biociencias, BR-05508900 Sao Paulo - Brazil
[2] Univ Estado Rio de Janeiro, Lab Taxon Elasmobranquios, Dept Zool, Inst Biol, BR-20550011 Rio De Janeiro, RJ - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ACTA ZOOLOGICA; v. 93, n. 2, p. 171-183, APR 2012.
Web of Science Citations: 3
Abstract

Neurocrania of three species of angelsharks from the south-western Atlantic Ocean, occurring off south-eastern and southern Brazil, are described. A detailed morphological description is provided of the neurocranium of Squatina guggenheim and compared with S. argentina and S. occulta. Despite being generally conservative, the neurocranium of Squatina presents significant differences among these species which aid in their identification, which is otherwise problematical. The main distinctions were found in rostral projections, anterior fontanellae, supraorbital crests, upper and lower postorbital processes, otic capsules, suborbital crests, and pterotic processes. Squatina guggenheim and S. occulta share more neurocranial characters when compared to S. argentina. No basal angle was found, but we confirm the presence of a very much reduced and barely noticeable basioccipital fovea in Squatina; systematic implications within elasmobranchs of these and other features are discussed. (AU)

FAPESP's process: 02/06459-0 - Phylogenetic systematics, evolution and classification of living and fossil rays, with an analysis of historical biology of freshwater stingrays of the family Potamotrygonidae (Chondrichthyes: Batoidea)
Grantee:Marcelo Rodrigues de Carvalho
Support Opportunities: Research Grants - Young Investigators Grants