Reteporella kralicensis, ZÁGORŠEK, 2010

ZÁGORŠEK, KAMIL, 2010, BRYOZOA FROM THE LANGHIAN (MIOCENE) OF THE CZECH REPUBLIC PART II: SYSTEMATIC DESCRIPTION OF THE SUBORDER ASCOPHORA LEVINSEN, 1909 AND PALEOECOLOGICAL RECONSTRUCTION OF THE STUDIED PALEOENVIRONMENT, Acta Musei Nationalis Pragae Series B 66 (3 - 4), pp. 139-255 : 139-255

Reteporella kralicensis ZÁGORŠEK, HOLCOVá et TŘASOŇ, 2008

Pl. 132, Fig. 1-6 v.*2008 Reteporella kralicensis sp.n. – Zágoršek et al. p. 843,

Fig. 7

T y p e: Holotype deposited in the National museum Prague under the number PM2 – P 01306.

M a t e r i a l: Altogether 41 specimens have been studied in detail.

D i a g n o s i s: Colony reticulating, forming probably net-like colonies, however fenestrulae have not been found. Branches biserial or triserial. Frontal walls smooth with small areolar pores. Aperture is circular, hidden in a short peristome, consisting of two proximo-lateral flaps forming a basal pseudo-spiramen. Pair of oral spines situated on the margin of the aperture. Avicularia are polymorphic, two different types can be observed, situated only frontally howev- er. Small avicularia are immersed into the frontal wall, large avicularia forming separate polymorphs. Avicularia on the dorsal side are rare, usually situated near a bifurcation; they are large with a long, triangular palate. Ovicells deeply immersed with a wide, open frontal fissure.

R e m a r k s: Avicularia on the dorsal side have not been reported from the type material, however the features on the frontal side of the branch clearly identify the specimens. Characteristic features of this species are the large frontal avicularia forming separate polymorphs and the wide frontal fissure on the ovicell .