Rubencanthus diplotuberculatus
Figueroa & Gallo, 2017
Classification: Elasmobranchii incert. sedis Sphenacanthidae
Reference of the original description
New chondrichthyan fin spines from the Pedra de Fogo Formation, Brazil. Journal of South American Earth Sciences, 76, 389–396
New chondrichthyan fin spines from the Pedra de Fogo Formation, Brazil. Journal of South American Earth Sciences, 76, 389–396
Types
Rubencanthus diplotuberculatus
Holotype: Pz.UERJ: 523; Paratype: Pz.UERJ: 524; Pz.UERJ: 525; Pz.UERJ: 526; Pz.UERJ: 527; Pz.UERJ: 528; Pz.UERJ: 529;
Rubencanthus diplotuberculatus
Holotype: Pz.UERJ: 523; Paratype: Pz.UERJ: 524; Pz.UERJ: 525; Pz.UERJ: 526; Pz.UERJ: 527; Pz.UERJ: 528; Pz.UERJ: 529;
Description:
Citation: Rubencanthus diplotuberculatus Figueroa & Gallo, 2017: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
No image available.
Please send your images of "Rubencanthus diplotuberculatus" to
info@shark-references.com
Please send your images of "Rubencanthus diplotuberculatus" to
info@shark-references.com
Description
Original diagnosis after Figueroa & Gallo, 2017 [25212]: Chondrichthyan only known from fin spines with convergent margins towards the distal portion; slightly convex lateral faces; a flat posterior wall with small and well-spaced denticles at the posterolateral margins; spine compressed laterally, especially toward its distal portion; ornamentation composed of longitudinal ridges, each one possessing double series of tubercles running along them; ridges of the posterior portion of the lateral face are thinner than anterior ones; new ridges accreted by both, insertion at the posterior margin and by bifurcation at the lateral face in the medial portion; intercostal grooves small, thinner than the ridges.
Original diagnosis after Figueroa & Gallo, 2017 [25212]: Chondrichthyan only known from fin spines with convergent margins towards the distal portion; slightly convex lateral faces; a flat posterior wall with small and well-spaced denticles at the posterolateral margins; spine compressed laterally, especially toward its distal portion; ornamentation composed of longitudinal ridges, each one possessing double series of tubercles running along them; ridges of the posterior portion of the lateral face are thinner than anterior ones; new ridges accreted by both, insertion at the posterior margin and by bifurcation at the lateral face in the medial portion; intercostal grooves small, thinner than the ridges.
Remarks
shark-references Species-ID=14873;
type species of Rubencanthus Figueroa & Gallo, 2017 [25212] by monotypy (Art. 68.3 ICZN);
shark-references Species-ID=14873;
type species of Rubencanthus Figueroa & Gallo, 2017 [25212] by monotypy (Art. 68.3 ICZN);
References
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
The Paleozoic ichthyofauna of the Amazonas and Parnaíba basins, Brazil. Journal of South American Earth Sciences, 82, 122–132
DOI: 10.1016/j.jsames.2018.01.001
New chondrichthyan fin spines from the Pedra de Fogo Formation, Brazil. Journal of South American Earth Sciences, 76, 389–396
DOI: 10.1016/j.jsames.2017.03.015
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
The Paleozoic ichthyofauna of the Amazonas and Parnaíba basins, Brazil. Journal of South American Earth Sciences, 82, 122–132
DOI: 10.1016/j.jsames.2018.01.001
New chondrichthyan fin spines from the Pedra de Fogo Formation, Brazil. Journal of South American Earth Sciences, 76, 389–396
DOI: 10.1016/j.jsames.2017.03.015
