Sclerorhynchus pettersi

CASE & CAPPETTA, 1997


Classification: Elasmobranchii Rajiformes Sclerorhynchidae

Reference of the original description
CASE, G.R. & CAPPETTA, H. (1997)
A new selachian fauna from the Late Maastrichtian of Texas (Upper Cretaceous/Navarro Group; Kemp Formation). Münchner Geowissenschaftliche Abhandlungen Reihe A: Geologie und Paläontologie, 34: 131–189, 10 fig., 15 pl.

Synonyms / new combinations and misspellings
Sclerorhynchus cf. pettersi

Types
Sclerorhynchus pettersi
Holotype: AMNH-: 12188; Paratype: AMNH-: 12189;


Description:


Citation: Sclerorhynchus pettersi CASE & CAPPETTA, 1997: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 02/2021

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Sclerorhynchus pettersi CASE & CAPPETTA, 1997 Holotype © G. Case

Distribution Geographic
South Sulphur River, near Commerce, Hunt County, Texas [401]; one mile southeast of Arneytown, Monmouth County, New Jersey [404]

Distribution Strategraphy
Late Maastrichtian (Navarroan), Kemp Clay Formation [401]; Late Maastrichtian (New Egypt Formation) [404]

Material
less than one dozen rostral teeth; one oral tooth [401]; two rostral spine [404]

Description
Diagnosis after CASE & CAPPETTA, 1997 [401]: Rostral teeth of a Sclerorhynchus design but with a well differentiated posterior barb a little bit above the basal bulge. Oral teeth very low, with a cusp strongly bent lingually. Labial face very developed and bearing some radiating folds some of them dividing before the labial margin. Root slightly higher than the crown; root lobes wide with a flat basal face. There is a pair of large margino-lingual foramina.

Remarks
Some authors described rostral spines in open nomenclature as Sclerorhynchus cf. pettersi, eg. Smith (1999) [2244] and Smith et al. (1999) [3462] from Belgium or Case et al. (2017) from the Peedee Formation of North Carolina, USA [25344]

References
CASE, G.R. & COOK, T.D. & SADORF, E.M. & SHANNON, K.R. (2017)
A late Maastrichtian selachian assemblage from the Peedee Formation of North Carolina, USA. Vertebrate Anatomy Morphology Palaeontology, 3: 63–80
CASE, G.R. & BORODIN, P.D. & LEGGETT, J.J. (2001)
Fossil selachians from the New Egypt Formation (Upper Cretaceous, Late Maastrichtian) of Arneytown, Monmouth County, New Jersey. Palaeontographica, Abt. A, 261 (4–6): 113–124, 1 fig., 5 pl.
SMITH, R. & SMITH, T.H. & STEURBAUT, E. (1999)
Les élasmobranches de la transition Paléocène-Eocène de Dormaal (Belgique) : implications biostratigraphiques et paléobiogéographiques. Bulletin de la Société géologique de France, 170 (3): 327–334
SMITH, R. (1999)
Elasmobranches nouveaux de la transition Paléocène-Eocène de Dormaal (Belgique). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, 69: 173–185, 2 fig., pl. 1–2.
CASE, G.R. & CAPPETTA, H. (1997)
A new selachian fauna from the Late Maastrichtian of Texas (Upper Cretaceous/Navarro Group; Kemp Formation). Münchner Geowissenschaftliche Abhandlungen Reihe A: Geologie und Paläontologie, 34: 131–189, 10 fig., 15 pl.