Buffonellaria kuklinskii, 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

Buffonellaria kuklinskii sp. n.

Pl. 124, Fig. 1-6

D i a g n o s i s: Colony erect, bilaminar. Autozooecia with marginal areolar pores. Primary orifice with a wide sinus. Avicularia of two types, lateral suboral and adventitious, the frontal ones larger than the suboral avicularia. Ovicell with a slightly ribbed, semilunar endoecium. Secondary frontal hypercalcification often occurring.

H o l o t y p e: The specimen illustrated on Pl. 124, Fig. 1, from the section at Podbřežice, deposited in the National Museum Prague under the number PM2 – P 01460.

P a r a t y p e s: Five specimens from the section at Podbřežice deposited in the National Museum Prague under the numbers PM2 – P 01461 to PM2 – P 01465.

A d d i t i o n a l m a t e r i a l: 44 specimens, mainly from the sections at Podbřežice and Kralice nad Oslavou.

D e r i v a t i o n o m i n i s: In honour of Piotr Kuklinski (Department of Marine Ecology Institute of Oceanology Polish Academy of Sciences Warszaw) who studied the genus Buffonellaria in detail.

L o c u s t y p i c u s: Podbřežice, sample P1 ( Zágoršek and Holcová, 2005).

S t r a t u m t y p i c u m: Langhian – Lower Badenian.

M e a s u r e m e n t s: (in micro meters = µm; x = = average):

length of autozooecia: 385-509; x = 443

width of autozooecia: 236-350; x = 278

length of autozooecial aperture: 94-130; x = 118

width of autozooecial aperture: 98-121; x = 105

length of ovicell: 125-185; x = 151

width of ovicell: 163-203; x = 178

length of oral avicularium: 60-88; x = 72

width of oral avicularium: 40-53; x = 46

length of adventitious avicularium: 98-110; x = 104

width of adventitious avicularium: 56-58; x = 57

D e s c r i p t i o n: Colony flattened, erect, bilaminar with an encrusting base. Autozooecia with scattered marginal areolar pores arranged chaotically. Primary orifice with a wide sinus. Avicularia of two types, suboral and adventitious. Lateral suboral avicularia situated proximally from the aperture, usually single, rarely paired, tapering distally with a pivotal bar. Adventitious avicularia situated on the frontal wall within a small chamber, usually tapering proximally, always larger than the suboral avicularia. Ovicell deeply immersed, with a slightly ribbed, semilunar endoecium. The number of ribs varies from 10 to 20. Secondary frontal hypercalcification often occurring; in this case the secondary apertures are semilunar and the ovicells are more immersed.

C o m p a r i s o n: This species is similar to Buffonellaria jensi BERNING et KUKLINSKI, 2008 in having an iden-

159 tical sinus shape, one oral and one frontal avicularium, but it differs in having less areolar pores, and more ribs on the endoecium.

The specific features include the wide sinus in the primary orifice, two types of avicularia, the adventitious avicularia situated in a small chamber and moreover the ovicell has a slightly ribbed endoecium.

O c c u r r e n c e: Sections at Podbřežice and at Kralice nad Oslavou.