Phacellocoenia thomkai ( Eliášová, 1991 )

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 205

Phacellocoenia thomkai ( Eliášová, 1991)

Text-Fig. 36

v*1991 Rhabdophylliopsis thomkai sp. n.: Eliášová, p. 50, pl. 55, figs 1, 2, pl. 56, figs 1–3, pl. 58, fig. 3.

Dimensions. d (monocentric)= 7–11 mm; d (max, in budding stage)= 16 mm; c-c= 10–20 mm; s (monocentric adult calices)=up to 48+s5.

Description. Phaceloid-subfasciculate corallum; costosepta developed in 4 complete cycles with the beginning of a fifth cycle in adult corallites; endothecal dissepiments abundant throughout corallite.

Remarks. In forming a phaceloid to subfasciculate colony with polyps that multiply by intra- and extracalicinal (marginal) budding, and in having mainly compact septa that are subcompact in places, a trabecular columella, and an epicostal wall, the material from the Upper Paleocene of the Czech Republic closely corresponds to the genus Phacellocoenia Alloiteau & Tissier. The genus Rhabdophylliopsis Alloiteau & Tissier, 1958 , to which the Czech materal was originally assigned, shows all characteristics of Sideroseris Wells (see Remarks and illustrations of Sideroseris above).

Type locality of species. Upper Paleocene of the Czech Republic .

Distribution. Upper Paleocene of the Czech Republic.

Text-Fig. 36 Phacellocoenia thomkai ( Eliášová, 1991) , holotype SNM /Z 20655, Upper Paleocene of the Czech Repub-