Onychocella subpyriformis (d’Archiac, 1846)

Zágoršek, Kamil & Gordon, Dennis P., 2014, Revision of the Oligocene bryozoan taxa described by Stoliczka (1862), with the description of a new genus of Bryocryptellidae, Geodiversitas 36 (4), pp. 541-564 : 548

Onychocella subpyriformis (d’Archiac, 1846)

Eschara subpyriformis d’Archiac, 1846: 195 .

Membranipora (Semiflustrella) anhaltina Stoliczka, 1862: 85 , pl. 2, fig. 4.

Onychocella subpyriformis – Zágoršek 2003: 139, pl. 14, fig. 2 (cum syn.).

MATERIAL EXAMINED. — Holotype of Membranipora (Semiflustrella) anhaltina , registered as 1862/0022/0054. DIAGNOSIS. — Colony erect, multiserial, with flat cross section.Autozooecia hexagonal to oval, slightly longer than wide with large, semilunar opesia. Cryptocyst extensive, shallow, flat and smooth. Vicarious avicularium as long as but half as wide as autozooecium; orifice of vicarious avicularium small, circular, or seldom narrow and oval; rostrum very long, acute distally and usually curved laterally.

REMARKS

Ŋe Stoliczka specimen is identical with the material described by Braga (1980) and Zágoršek (2001, 2003) as Onychocella subpyriformis (d’Archiac, 1846) . As Braga (1980) pointed out, O. subpyriformis is quite variable and one of the commonest Eocene species in the Alpine Carpathians region.