The main goals of this study were to increase the data quality of the SPOT XS imagery for diVerentiation of several rock units and to expose the structural features of the southern part of the Sivas Tertiary Basin. With these aims, both edge enhancement and histogram equalized stretching Ž lters were applied to SPOT XS imagery of the southern part of the basin. Various geological observations a...

Many odontocete groups have developed enlarged facial crests, although these crests differ in topography, composition and function. The most elaborate crests occur in the South Asian river dolphin (Platanista gangetica), in which they rise dorsally as delicate, pneumatized wings anterior of the facial bones. Their position wrapping around the melon suggests their involvement in sound propagatio...

New records of the Oligo-Miocene mekosuchine crocodylian, Baru, from Queensland and the Northern Territory are described. Baru wickeni and Baru darrowi are accepted as valid species in the genus and their diagnoses are revised. Both species are present in Queensland and the Northern Territory but are restricted in time, with B. wickeni known from the late Oligocene and B. darrowi from the middl...

Cephalopod specimens assigned to the Argonautidae ( Obinautilus pulchra Kobayashi, 1954 and an unknown taxon) from two localities of Mishan Formation in Gohreh Khorgu sections, Bandar Abbas, southern Iran, are reported for first time Persian Gulf area. The co-existing foraminifera confirm middle Miocene age strata. Based on micropalaeontological data, previous Oligocene Obinautilus pulchra is e...

Bees (Anthophila) are one of the major groups of angiosperm-pollinating insects and accordingly are widely studied in both basic and applied research, for which it is essential to have a clear understanding of their phylogeny, and evolutionary history. Direct evidence of bee evolutionary history has been hindered by a dearth of available fossils needed to determine the timing and tempo of their...

The Earth already experienced numerous episodes of global warming and cooling. One of the latest impressive events of temperature rising was the Late Oligocene Warming that occurred around 25 Mya. An increase of the marine temperature of 2 to 4°C has been observed in a short time interval. In Europe, this major climatic event can be correlated to the continental faunal turnover "Microbunodon Ev...

Along the Isthmus of Panama 23 paleomagnetic sites were sampled in order to determine preliminary block rotations and paleolatitudinal movements. The lithology selected for this research corresponds to volcanic and sedimentary rocks with ages ranging from Upper Cretaceous to Pleistocene. Counterclockwise vertical axis rotations were uncovered in Paleocene and Oligocene units separated by a sini...

Abstract The authors describe a fossil avian distal tibiotarsal epiphysis, remains of cormorant (Phalacrociracinae), differing in age and morphological characters from other cormorants. material comes sandy marine deposits the village Máriahalom north-western Hungary, together with 26 vertebrate species, mostly marine. fossiliferous deposit is established Late Oligocene, at beginning Chattian s...

This workshop brought together specialists from various fields to develop a drilling proposal to fill the “Oligo-Miocene Gap” that exists in our understanding of the functions of Earth’s systems. We propose to establish the first continuous high-deposition record of the Oligo-Miocene through new International Ocean Discovery Program (IODP) drilling in the North Atlantic to allow the development...