Results 31 to 40 of about 19,323 (228)

Paleocene-Eocene foraminifera from the Tuz Gölü Basin (Salt Lake Basin, Central Türkiye) and their paleoenvironmental interpretations

open access: yesBulletin of the Mineral Research and Exploration
Paleocene-Eocene aged sediments from the east of Tuz Gölü Basin (Central Türkiye) provide significant data for foraminifera contents and their paleoenvironmental clues.
Aynur Hakyemez   +3 more
doaj   +1 more source

Flow units classification for geostatisitical three-dimensional modeling of a non-marine sandstone reservoir: A case study from the Paleocene Funing Formation of the Gaoji Oilfield, east China

open access: yesOpen Geosciences, 2018
Flow units classification can be used in reservoir characterization. In addition, characterizing the reservoir interval into flow units is an effective way to simulate the reservoir.
Zhang Penghui   +5 more
doaj   +1 more source

Typification of the genus Zizyphoides Seward et Conway (Magnoliophyta, Trochodendraceae)

open access: yesActa Palaeobotanica, 2021
Type material of Paliurus colombii Heer, Populus arctica Heer, Hakea arctica Heer, and Hedera macclurii Heer from the Atanikerdluk locality (Paleocene, Greenland) was restudied based on the original collection, stored in the National Museum of ...
Anastasia A. Zolina   +2 more
doaj   +1 more source

The first fossil representative of the dragonfly family Synthemistidae

open access: yesActa Palaeontologica Polonica
Gallosynthemis bechlyi gen. et sp. nov., described from the Paleocene maar of Menat (Puy-de-Dôme, France) is the firstever fossil record of the dragonfly family Synthemistidae. It shows the main synapomorphies of the family, viz.
Andre Nel   +3 more
doaj   +1 more source

PALEOCENE DEPOSITS OF THE UKRAINIAN SHIELD AND PECULIARITIES OF THE SEDIMENTOGENESIS OF THE PALEOCENE ARCHANGELSKIY SEA

open access: yesCollection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2009
A detailed stratigraphy of Paleocene deposits of the Ukrainian Shield is given. Original stages, seams, and suites are characterized. Stages of the Paleocene sedimentogenesis of Northern Ukraine are considered. According to litological-biofacial, paleoecological and tectonic data, this area was a sea basin with the Archangelskiy Sea being a big strait ...
Maslun, N.V., Ivanik, M.M.
openaire   +3 more sources

Discussion and significance of evidence for Paleocene strata by drilling in Yingcuixuan area of Xihu Sag [PDF]

open access: yesYouqicang pingjia yu kaifa
The Xihu Sag of the East China Sea Shelf Basin is characterized by thick Cenozoic sediments. Extensive research has been conducted on the geological conditions and hydrocarbon accumulation of the Eocene, Oligocene, and Miocene strata, with limited ...
JIANG DONGHUI   +5 more
doaj   +2 more sources

First shark record (Chondrichthyes, Elasmobranchii) from the Paleogene of Spitsbergen, Svalbard [PDF]

open access: yesPolish Polar Research, 2019
This is a short report about the first Cenozoic shark fossil from Svalbard. The specimen derives from the late Paleocene greenish sandstone of the Grumantbyen Formation, which is exposed in Fossildalen on the western side of Colesbukta on Spitsbergen ...
Thomas Mörs   +3 more
doaj   +1 more source

Leg 199 summary [PDF]

open access: yes, 2002
Ocean Drilling Program (ODP) Leg 199, "The Paleogene Equatorial Transect" (Sites 1215-1222), was designed to study the evolution of the equatorial Pacific current and wind system as Earth went from maximum Cenozoic warmth to initial Antarctic glaciations.
Lyle, M.   +55 more
core   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

open access: yesThe Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla   +7 more
wiley   +1 more source

The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro   +4 more
wiley   +1 more source

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