Squatina, Dumeril, 1906

Cicimurri, David J. & Knight, James L., 2009, Late Oligocene sharks and rays from the Chandler Bridge Formation, Dorchester County, South Carolina, USA, Acta Palaeontologica Polonica 54 (4), pp. 627-647 : 629

Squatina cf. S. angeloides van Beneden, 1873

Fig. 3A .

Referred specimens.—BCGM 9042 and 9043.

Comments.— Kent (1994) reported Squatina subserrata (von Münster, 1846) from the Oligocene of Virginia, and Müller (1999) adopted this classification even though he noted a very close similarity to Rupelian S. angeloides . Case (1980) referred North Carolina Oligocene teeth to S. subserrata , possibly because he thought the fossils were of early Miocene age. We believe Case’s (1980) material is morphologically similar to S. angeloides , and we tentatively assign our complete tooth to this species primarily because the lateral shoulders are virtually perpendicular to the cusp, which is characteristic of teeth that have been reported elsewhere (i.e., van den Bosch 1981; Müller 1983; Génault 1993; Baut and Génault 1999; Reinecke et al. 2001).

Stratigraphic and geographic range.—Oligocene (Rupelian and Chattian), Germany, France, Belgium, USA (North and South Carolina).

Figures

Fig. 3. Shark remains from Summerville, upper Chattian. A. Squatina cf. S. angeloides van Beneden, 1873, BCGM 9043, antero−lateral tooth, labial view. B. Nebrius cf. N. serra (Leidy, 1877), SC2009.18.1, antero−lateral tooth, labial view. C. Rhincodon cf. R. typus (Smith, 1828), BCGM 9045, anterior tooth, labial (C1), lateral (C2), and basal (C3) view. D.?Cetorhinus parvus (Leriche, 1908), BCGM 9050, dermal scale, dorsal view, anterior at bottom.