Rugosa (anthozoa) from the serpukhovian (lower carboniferous) of the upper silesian coal basin

Abstract

ABSTRACT:Fedorowski, J. and Machłajewska, I. 2014. Rugosa (Anthozoa) of the Serpukhovian from the Upper Silesian Coal Basin. Acta Geologica Polonica, 64 (1), 13-45. Warszawa.Two species, Antiphyllum sp. nov. 1 and Zaphrufimia sp. nov. 1, the first corals found in Štur horizon of the upper Malinowickie Beds, Upper Pendleian (E 1 ), are here described. Additional study of the subspecies of Zaprufimia disjuncta show them to be more similar than previously thought. Although they occur mainly in the Enna and Barbara horizons, one specimen of Z. d. serotina comes from the Gabriela horizon. Biozone Zaphrufimia disujncta disjuncta/Z .d .praematura is proposed for the Enna and Barbara horizons. The subzone of Zaphrufimia/Triadufimia of that Biozone, defined by the presence of Triadufimia gen. nov., is restricted to the Enna horizon. As confirmed by the occurrence of Cravenoceratoides edalensis, the new subzone roughly corresponds to the E2b1 ammonite Zone. An Antiphyllum/Ostravaia/Variaxon assemblage Zone is proposed for the coral assemblage of the Gaebler horizon. Cravenoceratoides nitidus present in the Roemer band (I b ) shows it to correlate with the E2b2 ammonite Zone. Comparison with other European regions suggests possible faunal exchange between those areas and the Upper Silesian Coal Basin in Serpukhovian time.

Acta Geologica Polonica

“…Fedorowski and Machłajewska (2014) described a collection newly acquired by Machłajewska. Identifications of species and genera published in earlier papers and these by Fedorowski (2010aFedorowski ( , 2012a, Fedorowski and Machłajewska (2014) differ significantly. Therefore, Fedorowski and Machłajewska (2014, table 3) tabulated all these names to demonstrate these differences.…”

“…For example, the late Serpukhovian (E 2 Genozone) and the early Bashkirian (H-R Genozones) were regressive periods in many areas of the world, but only the former applies to the Donets Basin, while the transgressive phase began there with the Bashkirian (Izart et al 2002). In contrast, short-lived environmental conditions available to corals appeared in the E 2 Genozone in the Upper Silesian Coal Basin of Poland and the Czech Republic (Schwarzbach 1937;Schindewolf 1952;Weyer 1974Weyer , 1977Fedorowski and Machłajewska 2014). These diverse local conditions and glaciation in the southern hemisphere, also recognised in the northern hemisphere (e.g., Stephenson et al 2010), resulted in a geographically dispersed and patchy occurrence of the upper Serpukhovian and Bashkirian rugose coral fauna.…”

Acta Geologica Polonica

“…However, the preserved growth stages are morphologically very similar to C. ovibos (Salter, 1855) and C. belcheri (Harker, 1960) var. magnum from the lower Permian of Spitsbergen described by Fedorowski (1965) and Chwieduk (2009,2013) in the following features: the number of major septa (70-79 vs. 70-75), corallite diameters (48-65 vs. 40-63), a wide dissepimentarium occupying about 1/2 of the corallite radius, the length of the cardinal protoseptum, the shape and size of the cardinal fossula, the length of the major septa, and the structure of the tabularium. Differences are marked in the structure of the dissepimentaria, which in the Canadian specimens contain more numerous lonsdaleoid dissepiments and in the growth of minor septa, which in the Canadian specimens are very short and not fully developed, while in the Spitsbergen specimens are in full number, short and thin, reaching 1/4 to 1/3 of the dissepimentarium width.…”