Raja manitaria

Engelbrecht, Mors, Reguero & Kriwet, 2019


Classification: Elasmobranchii Rajiformes Rajidae

Reference of the original description
Engelbrecht, A. & Mors, T. & Reguero, M.A. & Kriwet, J. (2019)
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;


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 12/2021

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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.

Remarks
valid after Engelbrecht et al. (2019) p. 1030 [27541];


References
Engelbrecht, A. & Mors, T. & Reguero, M.A. & Kriwet, J. (2019)
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