Parascylloides turnerae
Thies, Vespermann & Solcher, 2014
Classification: Elasmobranchii Synechodontiformes incert. fam.
Reference of the original description
Two new neoselachian sharks (Elasmobranchii, Neoselachii, Synechodontiformes) from the Rhaetian (Late Triassic) of Europe. Palaeontographica, Abt. A, 303(4–6), 137–167
Two new neoselachian sharks (Elasmobranchii, Neoselachii, Synechodontiformes) from the Rhaetian (Late Triassic) of Europe. Palaeontographica, Abt. A, 303(4–6), 137–167
Description:
Citation: Parascylloides turnerae Thies, Vespermann & Solcher, 2014: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
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Description
Original diagnosis after Thies, Vespermann & Solcher, 2014 [22054]: Crown with large bulky central cusp. One pair of small lateral cusplets present in anterior and lateral teeth. Lateral cusplets vestigial or lacking in posterior teeth. Apron and uvula lacking. Cutting edge running over central cusp and lateral cusplets, but being blunt and only little distinct on the central cusp. Ornamentation of the crown consisting of a few strong, widely spaced vertical ridges extending from almost the tip of the cusps to the base of the crown. Ridges on labial surface of the crown non-bifurcating, those on lingual surface may dichotomize in the apical part of the central cusp. Parallel-bundled enameloid (PBE) lacking radially directed bundles of apatite crystallites. Root bulky with a tabular basal surface, tongueshaped in apical or basal view, with the labio-lingual root diameter exceeding or least equalling the mesiodistal diameter. Lingual root protuberance well developed. Root also protruding labially. Root vascularization of modified anaulacorhize type, exceptionally of polyhemiaulacorhize type. Large foramina present on the labial and lingual root surfaces arranged in a horizontal series near the labio- and linguo-basal edges of these root surfaces. Smaller foramina may also be present but are distributed randomly over the root surfaces.
Original diagnosis after Thies, Vespermann & Solcher, 2014 [22054]: Crown with large bulky central cusp. One pair of small lateral cusplets present in anterior and lateral teeth. Lateral cusplets vestigial or lacking in posterior teeth. Apron and uvula lacking. Cutting edge running over central cusp and lateral cusplets, but being blunt and only little distinct on the central cusp. Ornamentation of the crown consisting of a few strong, widely spaced vertical ridges extending from almost the tip of the cusps to the base of the crown. Ridges on labial surface of the crown non-bifurcating, those on lingual surface may dichotomize in the apical part of the central cusp. Parallel-bundled enameloid (PBE) lacking radially directed bundles of apatite crystallites. Root bulky with a tabular basal surface, tongueshaped in apical or basal view, with the labio-lingual root diameter exceeding or least equalling the mesiodistal diameter. Lingual root protuberance well developed. Root also protruding labially. Root vascularization of modified anaulacorhize type, exceptionally of polyhemiaulacorhize type. Large foramina present on the labial and lingual root surfaces arranged in a horizontal series near the labio- and linguo-basal edges of these root surfaces. Smaller foramina may also be present but are distributed randomly over the root surfaces.
References
A taxonomic and paleoecological review of the Rhaetian chondrichthyan fauna of Bonenburg (NRW) Germany. PalZ, 99(4), 503–528
DOI: 10.1007/s12542-025-00744-x
Microvertebrates from the Rhaetian bone beds at Blue Anchor Bay, Somerset. Geological Magazine, 161(e8), 1–14
DOI: 10.1017/S0016756824000268
Onset of the Rhaetian Transgression in deep waters at Lilstock, North Somerset: Microvertebrate faunas. Proceedings of the Geologists Association, 135(2), 181–195
DOI: 10.1016/j.pgeola.2024.02.001
Microvertebrates from the Rhaetian basal bone bed of Saltford, near Bath, SW England. Proceedings of the Geologists' Association, 132 (2), 174–187
DOI: 10.1016/j.pgeola.2020.11.003
Microvertebrates from the basal Rhaetian Bone Bed (latest Triassic) at Aust Cliff, S.W. England. Proceedings of the Geologists’ Association, 129, 635–653
DOI: 10.1016/j.pgeola.2018.06.002
Die paläontologische Grabung in der Rhät-Lias-Tongrube der Fa. Lücking bei Warburg-Bonenburg (Kr. Höxter) im Frühjahr 2015. Geologie und Paläontologie in Westfalen, 88, 11–37
Two new neoselachian sharks (Elasmobranchii, Neoselachii, Synechodontiformes) from the Rhaetian (Late Triassic) of Europe. Palaeontographica, Abt. A, 303(4–6), 137–167
A taxonomic and paleoecological review of the Rhaetian chondrichthyan fauna of Bonenburg (NRW) Germany. PalZ, 99(4), 503–528
DOI: 10.1007/s12542-025-00744-x
Microvertebrates from the Rhaetian bone beds at Blue Anchor Bay, Somerset. Geological Magazine, 161(e8), 1–14
DOI: 10.1017/S0016756824000268
Onset of the Rhaetian Transgression in deep waters at Lilstock, North Somerset: Microvertebrate faunas. Proceedings of the Geologists Association, 135(2), 181–195
DOI: 10.1016/j.pgeola.2024.02.001
Microvertebrates from the Rhaetian basal bone bed of Saltford, near Bath, SW England. Proceedings of the Geologists' Association, 132 (2), 174–187
DOI: 10.1016/j.pgeola.2020.11.003
Microvertebrates from the basal Rhaetian Bone Bed (latest Triassic) at Aust Cliff, S.W. England. Proceedings of the Geologists’ Association, 129, 635–653
DOI: 10.1016/j.pgeola.2018.06.002
Die paläontologische Grabung in der Rhät-Lias-Tongrube der Fa. Lücking bei Warburg-Bonenburg (Kr. Höxter) im Frühjahr 2015. Geologie und Paläontologie in Westfalen, 88, 11–37
Two new neoselachian sharks (Elasmobranchii, Neoselachii, Synechodontiformes) from the Rhaetian (Late Triassic) of Europe. Palaeontographica, Abt. A, 303(4–6), 137–167
