Raja manitaria
Engelbrecht, Mors, Reguero & Kriwet, 2019
Classification: Elasmobranchii Rajiformes Rajidae
Reference of the original description
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica. Historical Biology, 31(8), 1028–1044
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica. Historical Biology, 31(8), 1028–1044
Types
Raja manitaria
Holotype: NRM-PZ: P16271; Paratype: NRM-PZ: P16270; NRM-PZ: P16268; NRM-PZ: P16269; NRM-PZ: P16267; NRM-PZ: P16265; NRM-PZ: P16266;
Raja manitaria
Holotype: NRM-PZ: P16271; Paratype: NRM-PZ: P16270; NRM-PZ: P16268; NRM-PZ: P16269; NRM-PZ: P16267; NRM-PZ: P16265; NRM-PZ: P16266;
Description:
Citation: Raja manitaria Engelbrecht, Mors, Reguero & Kriwet, 2019: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2024
Description
Original diagnose after Engelbrecht et al. (2019) p. 1030 [27541]: The new species of Raja is defined by the following combination of dental characters: Teeth with a low and triangular cusp that is more or less centred on the crown to slightly shifted towards the distal edge; smooth labial and lingual crown faces; well-developed and irregular cutting edges to cutting edges, which are arched convexly and are continuous through the apex of the principal cusp; mesial and distal rim around the base of the crown on all sides; shallow rounded depression mesial and distal from the triangular cusp in lingual view; the median overhang of the collar is not very prominent, lacking a distinct uvula and apron; labial and lingual crown edges are straight to concave; a low root with well separated and short flaring root lobes; the median furrow is broad and deep.
Original diagnose after Engelbrecht et al. (2019) p. 1030 [27541]: The new species of Raja is defined by the following combination of dental characters: Teeth with a low and triangular cusp that is more or less centred on the crown to slightly shifted towards the distal edge; smooth labial and lingual crown faces; well-developed and irregular cutting edges to cutting edges, which are arched convexly and are continuous through the apex of the principal cusp; mesial and distal rim around the base of the crown on all sides; shallow rounded depression mesial and distal from the triangular cusp in lingual view; the median overhang of the collar is not very prominent, lacking a distinct uvula and apron; labial and lingual crown edges are straight to concave; a low root with well separated and short flaring root lobes; the median furrow is broad and deep.
References
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica. Historical Biology, 31(8), 1028–1044
DOI: 10.1080/08912963.2017.1417403
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica. Historical Biology, 31(8), 1028–1044
DOI: 10.1080/08912963.2017.1417403
