Stahlraja sertanensis
Brito, Leal & Gallo, 2013
Classification: Elasmobranchii incertae sedis
Reference of the original description
A new Lower Cretaceous guitarfish (Chondrichthyes, Batoidea) from the Santana Formation, northeastern Brazil. Boletim do Museu Nacional do Rio de Janeiro, Nova Série. Geologia, 76, 1–13
A new Lower Cretaceous guitarfish (Chondrichthyes, Batoidea) from the Santana Formation, northeastern Brazil. Boletim do Museu Nacional do Rio de Janeiro, Nova Série. Geologia, 76, 1–13
Description:
Citation: Stahlraja sertanensis Brito, Leal & Gallo, 2013: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Brito, Leal & Gallo, 2013 [28856]: Batoid characterized by the presence of a rostral cartilage extending anteriorly to the snout tip; nasal capsules with horn-like anterior processes; pectoral propterygium, extending as far as the anterior part of the nasal capsules; two radials articulating directly with the scapulocoracoid, between the mesopterygium and the metapterygium; radials wider than those of the other guitarfishes; and by the presence of two laterodorsal arcualia elements, unfused with the synarcual.
Original diagnosis after Brito, Leal & Gallo, 2013 [28856]: Batoid characterized by the presence of a rostral cartilage extending anteriorly to the snout tip; nasal capsules with horn-like anterior processes; pectoral propterygium, extending as far as the anterior part of the nasal capsules; two radials articulating directly with the scapulocoracoid, between the mesopterygium and the metapterygium; radials wider than those of the other guitarfishes; and by the presence of two laterodorsal arcualia elements, unfused with the synarcual.
Remarks
shark-references Species-ID=16019;
type species of Stahlraja Brito, Leal & Gallo, 2013 [28856] by original designation (Art. 68.2 ICZN);
shark-references Species-ID=16019;
type species of Stahlraja Brito, Leal & Gallo, 2013 [28856] by original designation (Art. 68.2 ICZN);
References
Evolution of the batoidea pectoral fin skeleton: convergence, modularity, and integration driving disparity trends. Evolutionary Ecology, 39(1), 111–134
DOI: 10.1007/s10682-025-10330-x
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147
A new Lower Cretaceous guitarfish (Chondrichthyes, Batoidea) from the Santana Formation, northeastern Brazil. Boletim do Museu Nacional do Rio de Janeiro, Nova Série. Geologia, 76, 1–13
Evolution of the batoidea pectoral fin skeleton: convergence, modularity, and integration driving disparity trends. Evolutionary Ecology, 39(1), 111–134
DOI: 10.1007/s10682-025-10330-x
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147
A new Lower Cretaceous guitarfish (Chondrichthyes, Batoidea) from the Santana Formation, northeastern Brazil. Boletim do Museu Nacional do Rio de Janeiro, Nova Série. Geologia, 76, 1–13
