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Tabulate corals from the Givetian and Frasnian of the Holy Cross Mountains and Silesian Upland

100%

Nowinski A.

Acta Palaeontologica Polonica

1992

tom 37

nr 2-4

183-216

Tabulate corals and single species each of the heliolitid anthozoans and chaetetid sclerosponges mostly from the Givetian and Frasnian stromatoporoid-coral series of the Holy Cross Mts and the Silesia-Cracow Region are reviewed from an ecological and stratigraphical point of view. Thamnopora, or the branched pachyporids, and massive alveolitids are usually the most significant reef-builders. The most distinctive fauna, with Caliapora battersbyi and Heliolites porosus, thrived in the earlier Givetian bank habitats. Late Givetian biostromal-complex associations with Alveolites obtortus, Striatopora enigmatica, and especially Alveolitella fecunda, as well as the succeeding Frasnian Alveolites-dominated reef-complex faunas with A. maillieuxi, and later with A. tenuissimus, Aulocystis and syringoporids, are far more uniform. In addition, a local Coenites laminosa-Chaetetes yunnanensis fauna is recognized in the Middle Givetian of the Kostomłoty area. The transitional biogeographic position for Polish tabulate assemblages between Variscan Europe and Russia is clearly evident. Forty eight species have been identified. Pachyfavosites polonicus sp. n., Striatopora enigmatica sp. n., Alveolitella polygona sp. n., Armalites minimus sp. n., and Syringoporella raritabulata sp. n., Alveolites edwardsi frasnianus subsp. n., and Caliapora battersbyi minor subsp. n. are proposed.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Nowinski A.

1 1992

Wyniki wyszukiwania

Tabulate corals from the Givetian and Frasnian of the Holy Cross Mountains and Silesian Upland