Results 91 to 100 of about 16,066 (225)

Selknamella: a new agglutinated foraminiferal genus from the early Eocene southern high latitudes [PDF]

open access: yes, 2014
A new, unusual agglutinated foraminifera, Selknamella basketi n. gen., n. sp. is described from the Fuegian lower Eocene, Magallanes Basin, southernmost South America.
Arenillas, I.   +3 more
core  

An effective palynological preparation procedure using hydrogen peroxide [PDF]

open access: yes, 2007
Most pre-Quaternary palynology samples are currently prepared by demineralization of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively).
Kyffin-Hughes, Jane E.   +2 more
core   +2 more sources

On the findings of dinosaurs in the Crimea

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
Ornithopod dinosaur Riabininohadros weberae from the Upper Cretaceous (upper Maastrichtian) of the Crimean Peninsula (Besh-Kosh) shows a set of primitive characters of hind limbs observed in iguanodontids and basal ornithischians and is referred to as ...
A. V. Lopatin, A. О. Averianov
doaj   +1 more source

Aristonectes quiriquinensis, sp. nov., a new highly derived elasmosaurid from the upper Maastrichtian of central Chile [PDF]

open access: yes, 2014
This paper describes a new species of elasmosaurid plesiosaur, Aristonectes quiriquinensis, sp. nov., based on a partial skeleton recovered from upper Maastrichtian beds of the Quiriquina Formation of central Chile.
O'gorman, Jose Patricio   +8 more
core   +4 more sources

The Jabal Akhdar Dome in the Oman Mountains : evolution of a dynamic fracture system [PDF]

open access: yes, 2014
Acknowledgments: This study was carried out within the framework of DGMK (German Society for Petroleum and Coal Science and Technology) research project 718 “Mineral Vein Dynamics Modelling,” which is funded by the companies ExxonMobil Production ...
Arndt, M.   +9 more
core   +2 more sources

Fossils of the type Maastrichtian

open access: yes, 2012
The south-western Indian Ocean islands, excluding the microcontinent of Madagascar, are geologically complex and diverse. They have been subject to drastic sea level changes, volcanic events and anthropogenic changes, all of which have contributed to confuse understanding of their avian biogeography.
Jagt, J.W.M. (John)   +2 more
openaire   +1 more source

Campanian and Maastrichtian Inoceramids: A review

open access: yes, 1982
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Macroevolutionary patterns in cranial and lower jaw shape of ceratopsian dinosaurs (dinosauria, ornithischia). phylogeny, morphological integration, and evolutionary rates [PDF]

open access: yes, 2017
Organisms: Ceratopsians were herbivorous, beaked dinosaurs, ranging from 1 m to 9 m in body length, usually four-footed, and with a bony frill that extended backwards from the cranium over the nape of the neck. Known from Asia, Europe, and North America,
Farke, Aa   +3 more
core  

Campanian and Maastrichtian ammonites from East and North-East Greenland

open access: yesGEUS Bulletin
Newly collected ammonites from Campanian and Maastrichtian strata in East and North-East Greenland are described. An early early Campanian fauna from Hold with Hope includes Neophylloceras, Pseudophyllites, Gaudryceras (Gaudryceras) mite (Hauer 1866) and
W. James Kennedy   +2 more
doaj   +1 more source

Terrestrial records of two hyperthermal events in the Cretaceous-Paleogene boundary suggest different control mechanisms

open access: yesCommunications Earth & Environment
Two hyperthermal events with different carbon cycle perturbations occurred across the Cretaceous-Palaeogene boundary, i.e., the late Maastrichtian Warming Event and the Early Danian Dan-C2 event.
Mingming Ma   +3 more
doaj   +1 more source

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