Pristiophorus tortonicus
Reinecke, Pollerspöck, Motomura, Bracher, Dufraing, Güthner & Von Der Hocht, 2020
Classification: Elasmobranchii Pristiophoriformes Pristiophoridae
Reference of the original description
Sawsharks (Pristiophoriformes, Pristiophoridae) in the Oligocene and Neogene of Europe and their relationships with extant species based on teeth and rostral denticles. Palaeontos, 33, 57‒163
Sawsharks (Pristiophoriformes, Pristiophoridae) in the Oligocene and Neogene of Europe and their relationships with extant species based on teeth and rostral denticles. Palaeontos, 33, 57‒163
Images of types
Description:
Citation: Pristiophorus tortonicus Reinecke, Pollerspöck, Motomura, Bracher, Dufraing, Güthner & Von Der Hocht, 2020: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024
Please send your images of "Pristiophorus tortonicus" to info@shark-references.com
Pristiophorus tortonicus Reinecke, Pollerspöck, Motomura, Bracher, Dufraing, Güthner & Von Der Hocht, 2020; Upper Mica Clay ("Oberer Glimmerton"), Grolß Pampau, Schleswig-Holstein, Germany, holotype, SMF P10690 © Thomas Reinecke, Bochum
Pristiophorus tortonicus Reinecke, Pollerspöck, Motomura, Bracher, Dufraing, Güthner & Von Der Hocht, 2020; Upper Mica Clay ("Oberer Glimmerton"), Grolß Pampau, Schleswig-Holstein, Germany, holotype, SMF P10690 © Thomas Reinecke, Bochum
Distribution Geographic
France: Surgenne Brook E of Mios, Département Gironde
Malta: Ghasri, Gozo
Germany: Groß Pampau; Freetz,
Denmark: Gram
Belgium: Kallo,
France: Surgenne Brook E of Mios, Département Gironde
Malta: Ghasri, Gozo
Germany: Groß Pampau; Freetz,
Denmark: Gram
Belgium: Kallo,
Distribution Strategraphy
Middle Miocene, Serravallian: Bioclastic sands (“Faluns”) de Mios, Sallomacien;
Late Miocene, Tortonian: Glauconitic level in Blue Clay Formation; Oberer Glimmerton (Upper Mica Clay), upper Langenfelde regional stage, Astarte gleuei-Zone; Gram Formation
Early Pliocene, Zanclean: Kattendijk Formation
Middle Miocene, Serravallian: Bioclastic sands (“Faluns”) de Mios, Sallomacien;
Late Miocene, Tortonian: Glauconitic level in Blue Clay Formation; Oberer Glimmerton (Upper Mica Clay), upper Langenfelde regional stage, Astarte gleuei-Zone; Gram Formation
Early Pliocene, Zanclean: Kattendijk Formation
Description
Original diagnose after Reinecke et al. (2020) p. 125-126 [29177]: Medium-sized pristiophorid teeth, up to 1.9 mm wide and 1.1 mm high. Dental pattern gradient-monognathic heterodont. Tooth of supposed anterior file(s) with upright, conical cusp and wide, symmetrical heels attached rather low at the central cusp, steadily sloping to the mesial/distal crown margins. Labial crown face labio-lingually wide, axially convex (shallower beneath heels), lacking an axial ridge and subvertical folds. Apron broad but indistinct; labial visor slightly ripply or smooth, with weak, transverse ridges on either sides of the apron. Labial crown base strongly overhangs root-crown junction and root. Laterolingual crown faces moderately high (apico-basally) and lingually oblique, with transverse ridge in low position. Mesial/distal cutting edges indistinct, extending from mid of central cusp to heels, but not reaching the crown margins. Uvula conical, broad, and relatively short. Root lower than crown, stout, triangular in basal view. Root lobes not separated, nutrient groove and basal foramen are absent (anaulacorhize). Teeth in lateral files with erect or distally oblique, lower cusp and broad, subhorizontal heels, equipped with a low, broad cusplet (hump) on either sides. Labial crown face axially less convex than in anterior teeth, labio-lingually extended. Apron indistinct or absent; labial visor smooth or ripply, sometimes with clear transverse ridges locally ornamented with short, low folds. Distinct transverse ridges in lower segments of laterolingual crown faces. Uvula short and rather low.
Original diagnose after Reinecke et al. (2020) p. 125-126 [29177]: Medium-sized pristiophorid teeth, up to 1.9 mm wide and 1.1 mm high. Dental pattern gradient-monognathic heterodont. Tooth of supposed anterior file(s) with upright, conical cusp and wide, symmetrical heels attached rather low at the central cusp, steadily sloping to the mesial/distal crown margins. Labial crown face labio-lingually wide, axially convex (shallower beneath heels), lacking an axial ridge and subvertical folds. Apron broad but indistinct; labial visor slightly ripply or smooth, with weak, transverse ridges on either sides of the apron. Labial crown base strongly overhangs root-crown junction and root. Laterolingual crown faces moderately high (apico-basally) and lingually oblique, with transverse ridge in low position. Mesial/distal cutting edges indistinct, extending from mid of central cusp to heels, but not reaching the crown margins. Uvula conical, broad, and relatively short. Root lower than crown, stout, triangular in basal view. Root lobes not separated, nutrient groove and basal foramen are absent (anaulacorhize). Teeth in lateral files with erect or distally oblique, lower cusp and broad, subhorizontal heels, equipped with a low, broad cusplet (hump) on either sides. Labial crown face axially less convex than in anterior teeth, labio-lingually extended. Apron indistinct or absent; labial visor smooth or ripply, sometimes with clear transverse ridges locally ornamented with short, low folds. Distinct transverse ridges in lower segments of laterolingual crown faces. Uvula short and rather low.
References
Sawsharks (Pristiophoriformes, Pristiophoridae) in the Oligocene and Neogene of Europe and their relationships with extant species based on teeth and rostral denticles. Palaeontos, 33, 57‒163
Sawsharks (Pristiophoriformes, Pristiophoridae) in the Oligocene and Neogene of Europe and their relationships with extant species based on teeth and rostral denticles. Palaeontos, 33, 57‒163
