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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.)

Systematic Implications of the Anterior Pectoral Basals in Squaliform Sharks (Chondrichthyes: Elasmobranchii)

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Author(s):
da Silva, Joao Paulo C. B. [1] ; Vaz, Diego F. B. [1, 2] ; de Carvalho, Marcelo R. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Zool, Inst Biociencias, BR-05508900 Sao Paulo, SP - Brazil
[2] Coll William & Mary, Virginia Inst Marine Sci, Gloucester Point, VA 23062 - USA
Total Affiliations: 2
Document type: Journal article
Source: Copeia; v. 103, n. 4, p. 874-885, DEC 2015.
Web of Science Citations: 3
Abstract

This study investigates the skeletal architecture of the anteroproximal surface of the anterior pectoral basals in squaliform sharks, which presents distinctions at the insertion of one of the components of the depressor pectoralis muscle. Some squalomorph and galeomorph sharks studied have a different orientation of the propterygium or anteroproximal portion of the composite pectoral basal, as these project dorsally to form a distinct anterolateral plan for the insertion of the depressor pectoralis muscle. An exclusive condition of the anterior articular surface was observed in Centrophoridae, Dalatiidae, Oxynotidae, and Somniosidae, which have a hook-like process on the flattened and widened surface of the anteroproximal margin of the single or composite anterior pectoral basal. This distinct pectoral fin skeletal condition may represent evidence of a closer relationship among these taxa, whereas a dorsally projected anteriormost pectoral basal may represent the generalized condition among sharks. (AU)

FAPESP's process: 12/09877-0 - Comparative analysis of the morphology of the feeding apparatus in Myliobatiform rays (Chondrichthyes: Batoidea)
Grantee:Marcelo Rodrigues de Carvalho
Support type: Regular Research Grants
FAPESP's process: 12/05391-5 - Molecular evolution of regulatory regions of HOX genes associated with the morphology of fish fins, with special emphasis on Chondrichthyes
Grantee:Marcelo Rodrigues de Carvalho
Support type: Regular Research Grants
FAPESP's process: 13/13137-4 - Morphological and taxonomic review of genus Centroscymnus Barboza du Bocage & Capello 1864 (Chondrichthyes: Squaliformes: Somniosidae)
Grantee:Diego Francisco Biston Vaz
Support type: Scholarships abroad - Research Internship - Master's degree
FAPESP's process: 12/22692-9 - Analysis of the skeletal pattern of paired fins and their respective GIRDLES in species of Chondrichthyes restricted to international collections
Grantee:João Paulo Capretz Batista da Silva
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 12/02349-8 - Taxonomic review of the family Gymnuridae (Chondrichthyes: Myliobatoidei)
Grantee:Marcelo Rodrigues de Carvalho
Support type: Regular Research Grants
FAPESP's process: 12/07712-3 - Morphological and taxonomic review of the genus Centroscymnus Barboza du Bocage & Capello 1864 (Chondrichthyes:Squaliformes:Somniosidae)
Grantee:Diego Francisco Biston Vaz
Support type: Scholarships in Brazil - Master