Margaretta cereoides (ELLIS et SOLANDER, 1786)

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

Margaretta cereoides (ELLIS et SOLANDER, 1786)

Pl. 110, Fig. 1-4

v. 1974

v. 1977

1989

v.2003

Margaretta cereoides (ELLIS et SOLANDER) – David and Pouyet p. 196, Pl. 10, Fig. 7

Margaretta cereoides (ELLIS et SOLANDER) – Vávra p. 143 (cum. syn)

Margaretta cereoides (ELLIS et SOLANDER) – Schmid p. 52, Pl. 15, Fig. 4, 5 7, 8 (cum syn.)

Margaretta cereoides (ELLIS et SOLANDER) – Zágoršek p. 172 (cum syn.)

M a t e r i a l: A common species, altogether 39 specimens from different sections were studied in detail. Additional specimens from the Reuss collection stored in the Natural History Museum Vienna under the numbers 1859.50.976 and 1859.45.665 from the section at Sedlec .

D i a g n o s i s: Columnar colony with a circular cross-section. Autozooecia arranged in 4 to 8 longitudinal rows, separated by shallow grooves, elongated oval with a strongly porous, slightly convex frontal wall. Aperture circular to oval and situated on a short peristome. Ascopore median, circular, small and usually only slightly larger than the regular pores on the frontal wall. Ovicell has not been observed.