Michael Link

Solenoporaceen aus den obertriassischen (Nor) Riffkalken des Taurusgebirges (Antalya-Gebiet, Südtürkei)

From the Upper Triassic (Norian) reef limestones north and west of Antalya (Taurus Mts., Turkey) the red algae (Solenoporaceans)Solenopora undata n. sp.,Parachaetetes clatratus n. sp.,Parachaetetes riedeli n. sp.,Parachaetetes tauricus n. sp., andTauristorea parallela n. gen., n. sp. are described.Tauristorea is characterized by cells orientated parallel to the Substrate (vertically to the growth direction of the alga). InSolenopora undata andParachaetetes clatratus some cavity structures occur, whose function as reproductive organs are discussed.ZusammenfassungAus den obertriassischen (Nor) Riffkalken nördlich und westlich von Antalya (Taurus-Gebirge, Türkei) werden die Rotalgen (Solenoporaceen)Solenopora undata n. sp.,Parachaetetes clatratus n. sp.,Parachaetetes riedeli n. sp.,Parachaetetes tauricus n. sp. undTauristorea parallela n. gen., n. sp. beschrieben. BeiTauristorea sind die Zellfäden parallel zum Substrat (senkrecht zur Wachstumsrichtung der Alge) orientiert. InSolenopora undata undParachaetetes clatratus treten Hohlraumstrukturen auf, deren Funktion als Reproduktionsorgane diskutiert wird.

Bevocastria magna n. sp., eine neue Cyanobakterie aus den obertriassischen Riffkalken des Taurus-Gebirges (Türkei)

Bevocastria magna n. sp., an extremely large nodular species of the genusBevocastria, is described from Upper Triassic (Norian) reef limestones of a locality south of the town of Dereköy (SW Antalya, Turkey). The nodule ofB. magna looks like skeletons of chaetetid sponges which occur commonly at the same locality.B. magna is the first report of the genus from the Triassic deposits of Turkey.KurzfassungBevocastria magna n. sp., eine extrem große, knollige Art der GattungBevocastria wird aus den obertriassischen (Nor) Riffkalken einer südlich der Ortschaft Dereköy (SW Antalya, Türkei) gelegenen Lokalität beschrieben. Die Knolle vonB. magna sieht chaetetiden Schwämmen sehr ähnlich aus, die auch in der selben Lokalität häufig auftreten.B. magna ist das erste Vorkommen der Gattung in den trias-sischen Ablagerungen der Türkei.

Foraminifera from the Norian–Rhaetian reef carbonates of the Taurus Mountains (Saklıkent, Turkey)

Abstract Norian–Rhaetian reef carbonates are exposed in several localities in Taurus Mountains. They predominately contain hypercalcified sponges, followed by scleractinian corals and other less numerous organisms. A coherent Norian–Rhaetian reef structure is exposed near the small town of Saklıkent, west of Antalya. Foraminifers occur in reef carbonates of Saklıkent by numerous genera as shown in this paper. Two species — Siculocosta taurica and Siculocosta sadati — are described as new. The foraminiferal association of Saklıkent is similar or almost identical to the associations known from the Norian–Rhaetian reefs of Sicily, Northern Calcareous Alps, and Greece but shows less similarity to the foraminiferal association from the Apennines, Italy. The most abundant foraminifers are milioliporoids, particularly galeanellids and cucurbitids. Some sessile and agglutinated foraminifers, including Alpinophragmium perforatum Flügel, which mostly occurs abundantly in the Norian–Rhaetian reef carbonates, could not be found in the Saklıkent reef. This association of foraminifera is reported for the first time from a Norian–Rhaetian reef in the Taurus Mountains of Turkey.

Microproblematic organisms from the Norian–Rhaetian reefal carbonates of Saklıkent, Taurus Mountains, southern Turkey

Microscopic organisms with uncertain systematic affinity are referred to in the paleontological literature as microproblematica. Notwithstanding their cryptic biology, some are valuable index fossils for the facies analysis of reefal carbonates. Within reefal carbonates exposed near the town of Saklıkent, Taurus Mountains, southern Turkey, many microproblematic organisms were found in thin-sections. All of these organisms are known from similar Norian–Rhaetian carbonates from other localities of the Tethys. They are briefly described here and their occurrence, abundance, and stratigraphic range, and their importance as facies and index fossils, are discussed, as well as their original interpretation. Some of these microproblematica are described for the first time from the Norian–Rhaetian interval of Turkey. A list of all known Triassic microproblematica, formal and informal taxa, is given as an appendix.