Pristiophorus suevicus

Jaekel, 1890


Classification: Elasmobranchii Pristiophoriformes Pristiophoridae

Reference of the original description
Jaekel, O. (1890)
Über die systematische Stellung und über fossile Reste der Gattung Pristiophorus. Zeitschrift der Deutschen Geologischen Gesellschaft, 42, 86–120

Types
Pristiophorus suevicus



Description:


Citation: Pristiophorus suevicus Jaekel, 1890: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 01/2023

Please send your images of "Pristiophorus suevicus" to info@shark-references.com

Pristiophorus suevicus Jaekel, 1890; Neuhofen Formation, A-B: Mitterdorf near Schmidham, Germany (SNSB-BSPG 2020 LVII-5 and 6); C: Neuhofen, Germany (SNSB-BSPG 2020 LVII-7); © Thomas Reinecke, Bochum

Description
Diagnose based on oral teeth after Reinecke et al. (2020) p. 117 [29177]: Medium- to large-sized pristiophorid teeth, up to 2.2 mm wide and 1.2 mm high. Teeth in anterior files with upright central cusp and moderately wide, laterally sloping heels lacking cusplets. Labial crown face moderately to strongly convex, commonly smooth; very rarely with a weak, axial ridge in the apical region of the cusp; occasionally, few subvertical folds on the labial face below the heels. Surface of labial visor well rounded, smooth to slightly ripply; apron broad, unilobed or bilobed, well rounded. Distinct mesial/distal cutting edges running continuously from the apex to lateral crown margins. Laterolingual crown faces low and smooth or ornamented with weak folds on a transverse ridge. Uvula conical, broad, and rather short (relative to labio-lingual crown diameter). Root bulky and lower than crown, with a broad axial depression on labial side. Teeth in lateral to lateroposterior files with lower, erect or slightly oblique cusp and relatively broader, less sloping heels than in anterior teeth. Labial crown face similar or less convex, commonly smooth and lacking an axial ridge. Labial visor with weak, broad apron (sometimes bilobed) and transverse ridges (casually) occurring on either sides of the apron, ornamented with short vertical folds and tubercles. Uvula short, rather thick in lateroposterior teeth. Laterolingual crown faces either smooth or slightly ripply, rarely equipped with a short transverse ridge.

Remarks
valid after Jaekel (1890) p. 116 [1207]; Joleaud (1907) p. 122 [1227]; Reinecke et al. (2020) p. 116 [29177];


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