Cooleyella fordi ( Duffin and Ward, 1983 )

Ginter, Michał, Duffin, Christopher J., Dean, Mark T. & Korn, Dieter, 2015, Late Viséan pelagic chondrichthyans from northern Europe, Acta Palaeontologica Polonica 60 (4), pp. 899-922 : 916

Cooleyella fordi ( Duffin and Ward, 1983)

Fig. 8C, D .

Material.— Three specimens from upper Viséan of Cawdor Quarry, Matlock, Derbyshire, England, UK (sample Cawdor 5), NHMUK PV P73284–5 .

Description.—The teeth of Cooleyella from Cawdor Quarry are typical, with a crown composed of a triangular median cusp, lateral wings (connected with the median cusp by a common carina) and a labial extension of the crown (“basal flange”). The base is lenticular, with a deep pit in the aboral side. The openings of the main basal canal are situated lingual to the centre of the pit and at the lingual rim of the base.

Stratigraphic and geographic range.—Viséan (Asbian) of Novgorod Region, Russia ( Savitskiy et al. 2000), upper Viséan of Derbyshire, England ( Duffin and Ward 1983 and this paper) and Belgium ( Ivanov and Derycke 2005); Cisuralian of the South Urals, Russia (Ivanov 2011). Ivanov (2011) also notes the presence of this species, but with no illustration or reference to particular locality, in the Viséan of Nearpolar Urals, Serpukhovian of Moscow Syneclise, and Pennsylvanian of the North Timan.

Figures

Fig. 8. Chondrichthyan teeth from the upper Viséan of Cawdor Quarry, Matlock, Derbyshire, England, UK; sample Cawdor 5 (A–E), 8 (F). A. Bransonella nebraskensis (Johnson, 1984), NHMUK PV P73283, in lingual (A 1), labial (A 2), and oral (A 3) views. B. Squatinactis caudispinatus Lund and Zangerl, 1974, NHMUK PV P73286, in labial (B 1) and oblique lateral (B 2) views. C, D. Cooleyella fordi (Duffin and Ward, 1983). C. NHMUK PV P73284, in oral C 1) and lingual (C 2) views. D. NHMUK PV P73285, in aboral/labial view. E. Ginteria fungiforma Duffin and Ivanov, 2008, NHMUK PV P66676, in oral E ), lateral (E ), and lingual (E ) views. F. Tip of a helodontid holocephalian tooth, NHMUK PV P73287, in lateral view.