Magistrauia unicaplicata

GUINOT, CAPPETTA & ADNET, 2014


Classification: Elasmobranchii Orectolobiformes Brachaeluridae

Reference of the original description
GUINOT, G. & CAPPETTA, H. & ADNET, S. (2014)
A rare elasmobranch assemblage from the Valanginian (Lower Cretaceous) of southern France. Cretaceous Research, 48: 54–84

Types
Magistrauia unicaplicata
Holotype: USTL: VAL-171;


Description:


Citation: Magistrauia unicaplicata GUINOT, CAPPETTA & ADNET, 2014: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 05/2021

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Description
Original diagnose after Guinot et al. (2014) p. 73 [20107]: Small orectolobiform teeth (less than 0.7 mm) with marked degree of monognathic heterodonty. Biconvex triangular main cusp and two pairs of lateral cusplets all inclined lingually. Inner cusplets slightly converging, outer cusplets incipient. Short convex apron with concave margins. High and triangular uvula not reaching the lingual root edge. Hemiaulacorhize and V-shaped root, fairly individualised root branches. Basal root face flared with wide medio-labial depression pierced by up to four foramina. Concave margino-lingual basal root edge. Up to two margino-lingual foramina. Ornament of labial crown face varying from narrow vertical bulge on the apron (anterior teeth) to marked vertical ridge (lateral teeth) bifurcating basally (posterior teeth).

Remarks
type species of Magistrauia Guinot et al. (2014) p. 73 [20107] by original designation (Art. 68.2 ICZN);

valid after Guinot et al. (2014) p. 73 [20107];

References
GUINOT, G. & CAPPETTA, H. & ADNET, S. (2014)
A rare elasmobranch assemblage from the Valanginian (Lower Cretaceous) of southern France. Cretaceous Research, 48: 54–84
DOI: 10.1016/j.cretres.2013.11.014