1 Albrecht-von-Haller-Institut f r Pflanzenwissenschaften, Abteilung Systematische Botanik, Georg-August-Universit t G ttingen, Untere Karsp le 2, 37073 G ttingen, Germany 2 Department of Botany, The Field Museum, 1400 South Lake Shore Drive, Chicago, IL, U.S.A. 3 Nachtigallenweg 9, 29342 Wienhausen, Germany 4 Courant Research Centre Geobiology, Georg-August-Universit t G ttingen, Goldschmidtst...

The authors consider the conditions of occurrence, composition, and properties Eocene clays Paleogene, common in northern part Tamdytau, which were foundation structures. present study is aimed at studying problem long-term interaction with water identifying features changes their material composition properties; variability clays, reasons for these are analyzed. main factors determining differ...

We studied Upper Cretaceous and Lower Paleogene benthic foraminifera from the Agost section (southeastern Spain) to infer paleobathymetrical changes and paleoenvironmental turnover across the Cretaceous/Paleogene (K/P) transition. Benthic foraminifera indicate uppermost bathyal depths at Agost during the Abathomphalus mayaroensis Biochron (from about 400 kyr before the K/P boundary) through the...

Today, the continental ecosystems of Southeast Asia represent a global biodiversity hotspot. From a deep-time perspective, however, very little is known about the formation of this hotspot. In particular, the evolutionary and biogeographic roots of numerous terrestrial biota are unknown, and ecosystemic information, especially for the Paleogene, is unavailable. The Na Duong Basin in northern Vi...

We studied Upper Cretaceous and Lower Paleogene benthic foraminifera from the Agost section (southeastern Spain) to infer paleobathymetrical changes and paleoenvironmental turnover across the Cretaceous/Paleogene (K/P) transition. Benthic foraminifera indicate uppermost bathyal depths at Agost during the Abathomphalus mayaroensis Biochron (from about 400 kyr before the K/P boundary) through the...

The Jebel Qatrani Formation of northern Egypt has produced Afro-Arabia's primary record of Paleogene mammalian evolution, including the world's most complete remains of early anthropoid primates. Recent studies of Fayum mammals have assumed that the Jebel Qatrani Formation contains a significant Eocene component ( approximately 150 of 340 m), and that most taxa from that succession are between ...

Alluvial-fan strata contain valuable proxy data for kinematic, climatic and sediment-flux phenomena associated with high-relief source regions. Proper application of this data is dependent upon acquisition of accurate high-resolution chronostratigraphic data, best achieved through magnetostratigraphy. Collection of magnetostratigraphic and other proxy data from composite alluvial-fan sections a...