Remarks on Middle Triassic (Anisian) scleractinian corals from the Cracow-Silesian region, Poland (Northern Peri-Tethyan realm)

摘要

This paper deals with the mode of occurrence, growth forms, skeletal preservation and the life conditions of some of the oldest, stratigraphically well-documented Anisian (Pelsonian- early Illyrian) scleractinian corals, occurring in situ, in shallow-water carbonate rocks in the Lower and Middle Muschelkalk of the Cracow-Silesian region, Southern Poland (northern Peri- Tethys, Central Europe). Among 18 species (from 14 genera; some of the generic names require emendation), one of the important Anisian coral species is Pamiroseris silesiaca (BEYRICH) (= former Thamnastraea Silesiaca BEYRICH), frequently occurring and widely distributed in the Peri- Tethyan (Germany, Poland) and found in the Tethyan provinces (Alps and S. China). The paper also presents skeletal growth bands of P. silesiaca and its septal microarchitecture, important because of high morphological homeomorphy of thamnasterioid corals, e.g., Pamiroseris, Thamnasteria