Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 87. (Budapest 1995)

Dulai, A.: Middle Miocene (Badenian) lunulitiform Bryozoa from Szob (Börzsöny Mts., Hungary)

on the basis of the number of pores at basal sectors. This species contains all the European fossil specimens described as C. canariensis (BUSK). In their interpretation C. canariensis (BUSK) has 3-4 (1-6) and C. vindobonensis BALUK et RADWANSKI has 6-12 (1-28) pores at basal sectors. The author identifies himself with this idea because the classification of this genus is mainly based on the number of pores at basal sectors. But it seems that the two interpretations have a very similar meaning. The length of zooecia in the Szob specimens is very similar to COOK'S (1965b) data but slightly larger than given by CADÉE (1979, 1981) and REGUANT (1993) (Table 4). The width of zooecia is very similar to REGUANT's (1993) measurements but more or less smaller than reported by COOK (1965b) and CADÉE (1979, 1981). The length of vibracular opesia slightly larger than indicated by COOK (1965b) and REGUANT (1993). The number and shape of kenozoecial chambers in the Szob specimens can be seen on Figs 27-28. The number of kenozoecial chambers is maximum 8 in the Poland material (BALUK & RADWANSKI 1984b) and 3-4 in Vienna Basin (BALUK & RADWANSKI 1984a). The number of pores per basal sector is 5-13 (2-17) in the Szob material (Fig. 3) which is very similar to the data of literature (Table 5). Regenerated specimens cannot be seen because of the very fragmentary preservation of the material. The diameter of the colonies is also unknown because of the incomplete colony preservation. The largest fragment is 5.2 mm long which refers to a size about 11-12 mm in diameter. Distribution: This species (partly as C. canariensis (BUSK) was mentioned from the Transylvanian Basin (MANZONI 1877, COOK 1965b), Korytnica Basin (BALUK & RADWANSKI 1984b) and Vienna Basin (summarized by BALUK & RADWANSKI 1984a). Other occurrences outside the Central-Paratethys: Spain, the Netherlands, Germany, Denmark, Belgium (Miocene) and Spain, France, Great Britain, Belgium, the Netherlands, Italy (Pliocene). Family Discoporellidae BALUK et RADWANSKI, 1984 Genus Reussirella BALUK et RADWANSKI, 1984 Reussirella haidingeri (REUSS, 1847) (Figs 11-22, 24-26) Lunulites Haidingeri REUSS 1847: 58, PI. 7, Figs 26-27. Cupularia Haidingeri (REUSS): MANZONI 1877: 71, PI. 16, Fig. 54. Cupuladria haidingeri (REUSS): LAGAAIJ 1952: 35, PI. 2, Figs 2a-b; LAGAAIJ 1953: 16, Pl. 1, Figs 2a-b; BUGE 1957: 140, PI. 9, Figs 6-7; BUGE 1973: 36, Pl. 6, Figs 3-4; BALUK & RADWANSKI 1977b: 144, PI. 4, Figs 1-7; CADÉE 1977: 45, Pl. 1, Figs 2a-b. Reussirella haidingeri (REUSS): BALUK & RADWANSKI 1984a: 25, Pis 4-6, PI. 10; BALUK & RADWANSKI 1984b: 246, Pis 5-6; BISHOP & HAYWARD 1989: 8, Figs 22-25; REGUANT 1993: 128, Pl. 1, Figs 5-6. M a t e r i a 1: 38 more or less complete colonies and numerous fragmentary specimens. D i m e n s i o n s: length of zooecia 0.545+0.0218 mm (range 0.47-0.61 mm), width of zooecia 0.267+0.0133 mm (range 0.21-0.30 mm), length of vibracular opesia 0.125+0.0083 mm (range 0.11-0.15 mm), diameter of colony 2.89+0.532 mm (range: 1.89-3.86 mm) (see details in Tables 2 and 6). Description: Zoaria are free in adult stages. Zooecia with asymmetrical vibracula situated distal to each zooecium in the same radial series. The shape of zooecia is rounded rhombic. Vicarious vibracula is not observed. Central zooecia are closed by a calcareous lamina. Zooecia are accompanied by well-developed vestibular arch. Zooecia are partly closed by a calcareous cryptocyst, with characteristic dentated opening. Ovicells cannot be observed. Kenozoidal chambers are absent within the basal pad. The zooecial layer is thicker than the basal pad. The concave side of the colony has radial grooves only. The surface between the grooves is covered by small tubercules.