Rosaodus xingyiensis
Li, Sun, Cuny, Ji, Jiang & Zhou, 2021
Classification: Elasmobranchii incert. sedis
Reference of the original description
An unusual shark assemblage from the Ladinian–Carnian interval of South China. Papers in Palaeontology, 2021, 8(1), Article e1404
An unusual shark assemblage from the Ladinian–Carnian interval of South China. Papers in Palaeontology, 2021, 8(1), Article e1404
Types
Rosaodus xingyiensis
Holotype: GMPKU: P-3535; Paratype: GMPKU: P-3532; GMPKU: P-3540; GMPKU: P-3533; GMPKU: P-3542; GMPKU: P-3532–58;
Rosaodus xingyiensis
Holotype: GMPKU: P-3535; Paratype: GMPKU: P-3532; GMPKU: P-3540; GMPKU: P-3533; GMPKU: P-3542; GMPKU: P-3532–58;
Description:
Citation: Rosaodus xingyiensis Li, Sun, Cuny, Ji, Jiang & Zhou, 2021: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Li, Sun, Cuny, Ji, Jiang & Zhou, 2021 [30105]: Dentition with a gradient monognathic heterodonty: anterior teeth symmetrical with an arched labial root, lateral and posterior teeth asymmetrical with a weakly arched labial root; polycuspid crown with a slender and biconvex main cusp; intermediate cusplets irregularly arranged between main cusp and lateral cusplets and sometimes present at the mesial or distal extremities of the crown; main cusp displaying a small labial peg or accessory cusplet; root displaying one central button lingually; depression with open canals located on the labial side of the root in basal view.
Original diagnosis after Li, Sun, Cuny, Ji, Jiang & Zhou, 2021 [30105]: Dentition with a gradient monognathic heterodonty: anterior teeth symmetrical with an arched labial root, lateral and posterior teeth asymmetrical with a weakly arched labial root; polycuspid crown with a slender and biconvex main cusp; intermediate cusplets irregularly arranged between main cusp and lateral cusplets and sometimes present at the mesial or distal extremities of the crown; main cusp displaying a small labial peg or accessory cusplet; root displaying one central button lingually; depression with open canals located on the labial side of the root in basal view.
Remarks
shark-references Species-ID=16162;
type species of Rosaodus Li, Sun, Cuny, Ji, Jiang & Zhou, 2021 [30105] by monotypy (Art. 68.3 ICZN);
shark-references Species-ID=16162;
type species of Rosaodus Li, Sun, Cuny, Ji, Jiang & Zhou, 2021 [30105] by monotypy (Art. 68.3 ICZN);
References
An unusual shark assemblage from the Ladinian–Carnian interval of South China. Papers in Palaeontology, 2021, 8(1), Article e1404
DOI: 10.1002/spp2.1404
An unusual shark assemblage from the Ladinian–Carnian interval of South China. Papers in Palaeontology, 2021, 8(1), Article e1404
DOI: 10.1002/spp2.1404
