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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.)

A new synapomorphy in the pelvic girdle reinforces a close relationship of Zanobatus and Myliobatiformes (Chondrichthyes: Batoidea)

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Author(s):
Capretz Batista da Silva, Joao Paulo [1] ; Silva Loboda, Thiago [2] ; de Souza Rosa, Ricardo [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Paraiba, Ctr Ciencias Exatas & Nat, Dept Sistemat & Ecol, BR-58051900 Joao Pessoa, Paraiba - Brazil
[2] Univ Fed Acre, Ctr Ciencias Biol & Nat, Lab Pesquisas Paleontol, Rio Branco, Acre - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Anatomy; v. 238, n. 4 NOV 2020.
Web of Science Citations: 0
Abstract

The rays of the order Myliobatiformes present several diagnostic characters, the most striking one being the presence of a serrated sting on the dorsal region of the tail. Although several morphological hypotheses have been proposed supporting the monophyly and interrelationships of its members, few characters of the appendicular skeleton were employed. In the present study, we analyzed comparatively the pelvic girdle morphology across all the groups of rays to investigate the distribution of the ischial process. To understand its significance, we tested this character of the pelvic girdle as a potential synapomorphy for the Myliobatiformes plus Zanobatus. Accordingly, the phylogenetic position of Zanobatus as a sister taxon to Myliobatiformes is reinforced and its pelvic girdle morphology reinterpreted in relation to previous morphological studies. (AU)

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 Opportunities: Scholarships abroad - Research Internship - Doctorate