Escharoides megalota ( REUSS , 1847)

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

publication ID	https://doi.org/ 10.5281/zenodo.13344847
DOI	https://doi.org/10.5281/zenodo.13227638
persistent identifier	https://treatment.plazi.org/id/316187B2-5323-FFBE-0784-F8A6283EF8BA
treatment provided by	Felipe
scientific name	Escharoides megalota ( REUSS , 1847)
status

Treatment

Escharoides megalota ( REUSS, 1847) View in CoL

Pl. 87, Fig. 1- 5

v. * 1847 Cellepora megalota m. – Reuss p. 81, Pl. 10, Fig. 1

1974 Escharoides megalota ( REUSS, 1847) View in CoL – David and Pouy- et p. 180, Pl. 10, Fig. 6

1989 Escharoides megalota ( REUSS, 1847) View in CoL – Schmid p. 33, Pl. 9, Fig. 1, 2, 5 (cum syn.)

146

T y p e: Syntypes deposited in the Natural History Museum Vienna under number 1867.40.187 ( David and Pouyet, 1974) .

M a t e r i a l: Altogether 32 specimens were investigated from many of the studied sections.

D i a g n o s i s: Autozooecia oval with a smooth frontal wall. Marginal areolar pores are small, there are about 20-30 pores at the border of each autozooecium. Aperture oval with small condyles and with spines situated on the distal margin of the aperture. Peristome short. Avicularia oval with long, narrow palate always tapering distally. Ovicell immersed into the distal part of the autozooecium; globular, with small marginal areolar pores. Ectoecium perforated by small pores.

R e m a r k s: The main distinction from Escharoides coccinea ( ABILDGAARD, 1806) is the granular frontal wall; moreover the avicularia are smaller in Escharoides megalota ( REUSS, 1847) .

Escharoides coccinea ( ABILDGAARD, 1806) Pl. View in CoL 88, Fig. 1-3

v. 1874 1974

v. 1977

1999

v. 2003

Lepralia lima nov. sp. – Reuss p. 160, Pl. 7, Fig. 4 Escharoides coccineus ( ABILDGAARD, 1806) – David and Pouyet p. 179 (cum syn.)

Escharoides coccinea ( ABILDGAARD, 1806) View in CoL – Vávra p. 132 (cum syn.)

Escharoides coccinea ( ABILDGAARD, 1806) View in CoL – Hayward and Ryland p. 112, Fig. 32

Escharoides coccinea ( ABILDGAARD, 1806) View in CoL – Zágoršek p. 158, P. 23, Fig. 3 (cum syn.)

M a t e r i a l: Altogether 5 specimens were studied, mainly from the section at Podbřežice. Additional specimens from the Reuss collection are stored in the Natural History Museum Vienna under the number 1859.19.154 (as Lepralia lima – holotype) from the section of Sedlec .

D i a g n o s i s: Autozooecia oval to triangular with strongly granulated frontal wall. The granules are sometimes arranged in ribs. Marginal areolar pores are intermediate in size, there are about 12-18 pores on the border of each autozooecium. Aperture oval with small condyles and with spines situated on the distal margin of the aperture. Non-ovicelled autozooecia have about 8 spines, ovicelled ones have about four spines. Peristome very short or absent with a prominent lyrula. Avicularia oval with long, narrow palate. Ovicell conspicuous, globular, with small marginal areolar pores. Ectoecium granular and perforated by very small pores.

R e m a r k s: This species is relatively common in the Recent Mediterranean, there are no differences between fossil specimens and the illustration and description of recent ones (for example Hayward and Ryland, 1999). Also the type of Lepralia lima REUSS, 1974 shows identical features when compared with recent specimens, so I decided to list this material under the name of the recent species .