Filisparsa, d'Orbigny, 1853

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 : 543-544

Filisparsa Ξ sp.

( Fig. 1C, D )

Filisparsa tenella Stoliczka,1862:80 , pl. 1, fig.5. — Zágoršek 2001: 519; 2003: 115, pl. 2, fig. 6 (cum syn.).

MATERIAL EXAMINED. — Holotype of Filisparsa tenella , registered as 1862/0022/0049.

DIAGNOSIS. — Colony short, erect, with autozooecial apertures arranged in rows.Peristomes slightly curving laterally from colony axis. Frontal wall with pseudopores; boundaries between autozooecial tubes indistinct. Dorsal side of colony smooth, slightly ribbed.Gonozooecium not known. REMARKS

Owing to the poor preservation and lack of the gonozooecium, the exact determination remains uncertain, but the arrangement of the autozooecia mostly resembles those in Filisparsa , even though the type species is Cretaceous. Ŋere is also some similarity to Tervia serrata ( Reuss, 1869) in which, however, the V outline of the autozooecial tubes is observable on the dorsal side of the branch.

Figures

FIG. 1. — A, Exidmonea hoernesi (Stoliczka, 1862), general view of holotype showing diagnostic features: one aperture, close to the dorsal side of the colony, which is always arranged outside the fascicle; B, Exidmonea giebeli (Stoliczka, 1862), general view of holotype; C, D, holotype of Filisparsa tenella identified as Filisparsa? sp. due to the poor preservation and lack of the gonozooecium; E, one of the syntypes of Pustulopora (Clausa) retifera identified as Mecynoecia cf. pulchella (Reuss, 1847) owing to the lack of a gonozooecium; F, holotype of Pustulopora attenuate identified as Mecynoecia cf. proboscidea (Milne-Edwards, 1838) owing to the lack of a gonozooecium; G, H, syntype of Alveolaria Buski identified as?Bobiesipora fasciculata (Reuss, 1848); J, holotype of Heteropora similis Stoliczka, 1862, identified as nomen dubium due to the very poor preservation and the absence of a gonozooecium or any other characteristic features; K, L, holotype of Pavotubigera anhaltina identified as “Disporella anhaltina (Stoliczka, 1862)” nomen dubium owing to poor preservation and the absence of a gonozooecium. Scale bars: A-G, 1 mm; H-L, 100 μm.