Results 61 to 70 of about 66,624 (345)

Cranial remains of an Eocene tarsier [PDF]

Proceedings of the National Academy of Sciences, 2006
The phylogenetic position of tarsiers relative to anthropoids and Paleogene omomyids remains a subject of lively debate that lies at the center of research into anthropoid origins. Omomyids have long been regarded as the nearest relatives of tarsiers, but a sister group relationship between anthropoids and tarsiers has also been proposed.
James B, Rossie, Xijun, Ni, K Christopher, Beard   +2 more
openaire   +2 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Eocene-Oligocene nannofossils from the Labrador Sea

, 1989
During Ocean Drilling Program (ODP) Leg 105, a thick sequence of lower Eocene to lower Oligocene sediments was recovered from Hole 647A in the southern Labrador Sea.
Firth, John V, John V Firth (6958709)
core   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

Geological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 more
wiley   +1 more source

New Paleogene mantises from the Oise amber and their evolutionary importance [PDF]

Acta Palaeontologica Polonica, 2019
Mantodea are rather scarce in the fossil record, especially those belonging to the mantise crown group. Four fossil mantids are described from the lowermost Eocene amber of Oise (France), two Chaeteessidae considered as “genus and species incertae sedis”,
Thomas Schubnel, Andre Nel
doaj   +1 more source

Eocene-Oligocene dataset

, 2016
Eocene-Oligocene dataset used for the R code "Indo-Pac_figs.R"
Hunt, Gene, Hisayo Okahashi (3243057), Yasuhara, Moriaki, Irizuki, Toshiaki, Kase, Tomoki, Renema, Willem, Iwatani, Hokuto, Okahashi, Hisayo, Hiroki Hayashi (807923), Moriaki Yasuhara (470809), Yolanda M. Aguilar (3266148), Allan Gil S. Fernando (3313608), Gene Hunt (2916932), Hokuto Iwatani (485593), Hayashi, Hiroki, Fernando, Allan Gil S., Aguilar, Yolanda M., Toshiaki Irizuki (3313605), Tomoki Kase (3266139), Willem Renema (807974)   +19 more
core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Veľké bentické dierkavce z eocénnych glaukonitových pieskovcov magurského príkrovu (Orava a Javorníky) [PDF]

Geologické práce. Správy, 2020
The aim of the work was to describe an assemblage of larger benthic foraminifers from quartz-glauconitic sandstones of the Bystrica Mb. of the Western Carpathian Magura Nappe.
Stanislav Buček, František Teťák
doaj  

Exquisitely Preserved Fossil Snakes of Messel: Insight into the Evolution, Biogeography, Habitat Preferences and Sensory Ecology of Early Boas

Diversity, 2020
Our knowledge of early evolution of snakes is improving, but all that we can infer about the evolution of modern clades of snakes such as boas (Booidea) is still based on isolated bones.
Agustín Scanferla, Krister T. Smith
doaj   +1 more source