Results 101 to 110 of about 59,258 (240)

Extinct genus Lagokarpos reveals a biogeographic connection between Tibet and other regions in the Northern Hemisphere during the Paleogene

open access: yesJournal of Systematics and Evolution, 2019
The biodiversity history on the Qinghai–Tibetan Plateau (QTP) has remained unclear for a long time. Recent paleobotanical investigations provide opportunities for revealing the phytogeographic history on the QTP in deep time and for testing ...
He Tang   +11 more
semanticscholar   +1 more source

Extent and character of early tertiary penetrative deformation, Sonora, Northwest Mexico [PDF]

open access: yes
Reconnaissance field work has led to the recognition of extensive Early Tertiary gneiss and schist which are distinguished by weakly developed to highly conspicous northeast to east-trending stretching lineation commonly accompanied by low-dipping ...
Anderson, T. H.
core   +1 more source

Catalogue of the type fossils stored in the Palaeontological Museum of "Sapienza" University of Rome. 3 [PDF]

open access: yes, 2015
This paper is a third contribution towards a catalogue of all types stored in the Palaeontological Museum of "Sapienza" University of ...
Manni, Riccardo Pier Celestino
core  

Paleogene monsoons across India and South China: Drivers of biotic change [PDF]

open access: yes, 2017
Monsoonal climates at low latitudes (2. Fossil leaf form reveals that under such 'hothouse' conditions megathermal early Eocene to earliest Miocene forests were exposed to strong monsoonal climates typical of those experienced today arising from annual ...
Aleksandrova, Galina   +13 more
core   +1 more source

Organic geochemistry of the crater-fill sediments from Boltysh impact crater, Ukraine [PDF]

open access: yes, 2009
The Boltysh impact crater, is a complex structure formed on the basement rocks of the Ukrainian shield which has been dated at 65.17±0.64 Ma [1]. The Boltysh crater has been know for several decades and was originally drilled in the 1960s-1980s in a ...
Gilmour, I.   +4 more
core  

Significant shift in the terrestrial ecosystem at the Paleogene/Neogene boundary in the Tibetan Plateau

open access: yesChinese Science Bulletin, 2019
The shift from the Paleogene to the Neogene represents an important timeline in the history of life on Earth: A point when the biotic realm approached that of nature today.
T. Deng   +4 more
semanticscholar   +1 more source

Paleogene stratigraphy of Kutch, India: an update about progress in foraminiferal biostratigraphy

open access: yes, 2018
The Paleogene sections of Kutch are the reference for the regional chronostratigraphic units of India. The ages of these dominantly shallow marine carbonates are mainly based on larger benthic foraminifera (LBF).
P. Saraswati   +2 more
semanticscholar   +1 more source

Remarks on the type locality and current status of the foraminiferal species Rzehakina epigona (Rzehak, 1895) [PDF]

open access: yes, 2001
A likely topotype locality is proposed for Rzehakina epigona. As the type specimen of Silicina epigona Rzehak, 1895 is assumed to be lost, we undertook a search for new material in the type area, Zdounky village in Moravia. A single locality provided a
Bubik, M., Kaminski, M.A.
core  

BOLIVINOIDESELLA: A NEW ROTALIID BENTHIC FORAMINIFERAL GENUS [PDF]

open access: yesScience Heritage Journal
This study describes the new Paleocene Rotaliid genus Bolivinoidesella of sample ODP 198-drilled on the Southern High of Shatsky Rise, Site 1210A- 24H-4(30–32), 219.70, Pacific Ocean, which located at tropical latitudes (~10oN) around the K/Pg boundary ...
Haidar Salim Anan
doaj   +1 more source

Oil-bearing potential and hydrocarbon occurrence characteristics of shale in Paleogene Hetaoyuan Formation in Biyang Sag, Nanxiang Basin

open access: yesShiyou shiyan dizhi
High-quality lacustrine shale beds within the Paleogene Hetaoyuan Formation in the Biyang Sag, Nanxiang Basin, exhibit significant potential for shale oil resources.
Yunyun JIN   +11 more
doaj   +1 more source

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