Fusulinid Biostratigraphy of the Moscovian-Lower Kasimovian of Hadim Nappe, Central Taurides, southern Turkey

Abstract

The Hadim Nappe which is one of the allochthonous tectonic units in the Tauride Belt includes continuous stratigraphic successions from Middle(?)-Late Devonian to Late Cretaceous. The well exposed successions of the Moscovian to lower Kasimovian are selected for fusulinid biostratigraphy along three sections (Yassipinar, Golbelen and Bademli) in the Central Taurides. The Lower-Middle Pennsylvanian boundary was determined by the first appearance datum of the Aljutovella aljutovica (Rauzer-Chernousova, 1938) and Solovievaia ovata ovata (Rauzer-Chernousova, 1938). In this study, the Vereian, Kashirian, Podolskian and Myachkovian regional substages of the Moscovian stage were determined by Aljutovella aljutovica-Solovievaia ovata ovata, Aljutovella priscoidea (Rauzer-Chernousova, 1938), Eofusulina triangula (Rauzer-Chernousova & Belyaev in Rauzer-Chernousova, Belyaev & Reitlinger, 1936), Fusulinella vozhgalensis devexa Rauzer-Chernousova in Rauzer-Chernousova, Gryzlova, Kireeva, Leontovich, Safonova & Chernova, 1951, Beedeina schellwieni (Staff in Schellwien & Staff, 1912) and Fusulinella bocki bocki Moller, 1878 in ascending order. The base of the lower Kasimovian is represented by the occurrence of Quasifusulinoides Rauzer-Chernousova & Rozovskaya in Rauzer-Chernousova & Fursenko, 1959, Protriticites Putrya, 1948 and Montiparus Rozovskaya, 1948 taxa. A total of 106 fusulinid species belonging to 19 genera were determined. One genus and ten species are new: Aljutovella typica Akbas, n. sp., Beedeina minuta Akbas, n. sp., Beedeina tauridiana Akbas, n. sp., Praefusulinella guvenci Akbas, n. gen., n. sp., Praefusulinella okuyucui Akbas, n. gen., n. sp., Praefusulinella rhombiforma Akbas, n. gen., n. sp., Praefusulinella tekini Akbas, n. gen., n. sp., Fusulinella absoluta Akbas, n. sp., Fusulinella obtusa minuta Akbas, n. subsp. and Fusulinella propriaforma Akbas, n. sp. The taxonomic positions of some fusulinids species (e.g., Neostaffella larionovae polasnensis (Rauzer-Chernousova & Safonova in Rauzer-Chernousova, Gryzlova, Kireeva, Leontovich, Safonova & Chernova, 1951), Depratina chernovi (Rauzer-Chernousova, Gryzlova, Kireeva, Leontovich, Safonova & Chernova, 1951), Solovievaia arta (Leontovich in Rauzer-Chernousova, Gryzlova, Kireeva, Leontovich, Safonova & Chernova, 1951) and Beedeina paradistenta (Safonova in Rauzer-Chernousova, Gryzlova, Kireeva, Leontovich, Safonova & Chernova, 1951) were revised. The fusulinid assemblages recovered in this study correlate well with the Russian Platform, Cantabrian Mountains, Central Iran, southern Urals, Donets Basin, and some other regions of the Tethyan Realm.