Parasquatina cappettai Herman, 1982

Adolfssen, Jan S. & Ward, David J., 2015, Neoselachians from the Danian (early Paleocene) of Denmark, Acta Palaeontologica Polonica 60 (2), pp. 313-338 : 323

publication ID	https://doi.org/ 10.4202/app.2012.0123
persistent identifier	https://treatment.plazi.org/id/C45E8796-6977-1978-FF2E-3BD8FC2FB3B7
treatment provided by	Felipe
scientific name	Parasquatina cappettai Herman, 1982
status

Treatment

Fig. 3K View Fig .

1982 Parasquatina cappettai sp. nov.; Herman 1982: 132, text-fig. 1; pl. 1: 3; pl. 3: 2.

Material.—A single tooth from the Ce in Stevns Kridtbrud ( MGUH 29838).

Description.—A monocuspid tooth, with the main cusp triangular and inclined towards the commissure and slightly distally twisted. The mesial shoulder is broader and more convex than the distal one. The labial face is smooth and convex, with a median protuberance that may be the remnants of an apron. The lingual face of the crown is smooth and very convex. The labial face of the root is low and the basal face is flat with a large central foramen. The lingual face of the root is high and broad with a protuberance with a central foramen. Three foramina are present below the mesial shoulder and a single foramen below the distal shoulder. It is not possible to confirm whether an uvula is present or not because of bioerosion.

Remarks.—Until the papers by Guinot et al. (2012) and Bourdon et al. (2011), Parasquatina was only known from Herman (1982) and in a short comment by Underwood and Ward (2008). Guinot et al. (2012) described two new species of Parasquatina ; P. justinensis from the middle Turonian of France and P. jarvisi from the late Santonian of France and Britain. Guinot et al. (2012) separate P. justienensis from P. cappettai by the lack of a well-developed apron and the presence of a labial protuberance and more robust root branches in the latter and P. jarvisi from P. cappettai by a lesser marked cutting edge, a longer apron and stronger labial overhang. The specimen found in the Cerithium Limestone resembles the specimen depicted by Herman (1982) and is the youngest known Parasquatina specimen.

Stratigraphic and geographic range.—Late Cretaceous: mid-Turonian of France ( Guinot et al. 2012), Santonian of England, France, and the USA ( Underwood and Ward 2008; Bourdon et al. 2011; Guinot et al. 2012), late Maastrichtian of Germany ( Herman 1982); Danian (early Paleocene) of Denmark.