Among the Tethyan larger porcelaneous foraminifera widespread from middle–late Eocene to middle Miocene, Austrotrillina Parr, 1942 is only genus showing a non-homogeneous shell structure. This consists of parakeriotheca, coated by thin, dense tectum. Four species (A. brunni, A. eocaenica, howchini, striata) have been often used as biostratigraphical markers in Mediterranean and Indo-Pacific are...

In this research, biostratigraphy and paleo-ecological reconstruction of the Qom Formation deposits in Bijegan village, northeast ofDelijan, are discussed. The studied section is situated in the western margin of the Urumieh-Dokhtar magmatic arc (the intra-arc basin).The Qom Formation deposits at the studied area are Rupelian-Chattian in age. Larger benthic foraminifers are used for biostratigr...

The Oligocene (Rupelian) Byram Formation (Vicksburg Group) in Alabama, USA, is divided into three members, including (in ascending order) the Glendon Limestone, unnamed marl, and Bucatunna Clay. The marine units Alabama have been historically under-investigated, but bulk samples recently obtained from Limestone Member exposures at site AWa-9 Washington County yielded 20 unequivocal elasmobranch...

Abstract. Sea surface temperature (SST) reconstructions based on isoprenoid glycerol dialkyl tetraether (isoGDGT) distributions from the Eocene southwest (SW) Pacific Ocean are unequivocally warmer than can be reconciled with state-of-the-art fully coupled climate models. However, SST signal preserved in sedimentary archives affected by contributions of additional isoGDGT sources. Methods now e...