Results 51 to 60 of about 34,573 (203)

Endocranial anatomy of the earliest Cretaceous European neosuchian crocodyliform Pholidosaurus purbeckensis provides new evidence for the ecological evolution of Pholidosauridae

open access: yesJournal of Anatomy, EarlyView.
We present new insights into the internal cranial anatomy of the neosuchian crocodyliform Pholidosaurus purbeckensis, based on CT‐scan data of material from the lowermost Cretaceous Purbeck Limestone Group, southern UK. From the study of the endocast, we obtained new information on the phylogeny and the ecological evolution of the Family ...
Leonardo Barbini   +4 more
wiley   +1 more source

Tubular agglutinated foraminifera as indicators of organic carbon flux [PDF]

open access: yes, 1995
The dimensions of tubular agglutinated foraminifera such as Rhizammina and Rhabdammina respond in a predictable manner to changes in the flux of organic carbon to the sea floor. In both the modern western North Atlantic and in an ancient example (the K/
Kaminski, M.A., Kuhnt, W.
core  

Aporosa Blume from the paleoequatorial rainforest of Bikaner, India: Its evolution and diversification in deep time [PDF]

open access: yes, 2016
The Gondwanan origin, northward migration and subsequent collision with Asia means that the Indian subcontinent is of particular interest regarding the origin and dispersal of numerous plants and animal species.
Mehrotra, Rakesh C.   +3 more
core   +1 more source

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka   +13 more
wiley   +1 more source

Results of the Magnetostratigraphic Studies of the Syzran Formation (Paleocene) in the Peschanyi Umyot Section (Saratov, Russia)

open access: yesУчёные записки Казанского университета: Серия Естественные науки
In this article, the results of the rock-magnetic measurements (magnetic susceptibility and its anisotropy before and after the heating of rocks, magnetic saturation) and paleomagnetic studies of the Lower Syzran Subformation (Paleocene) in the Peschanyi
D. A. Shelepov, A. Yu. Guzhikov
doaj   +1 more source

Palynology and stratigraphy of the thick evaporate-bearing Shashi Formation in Jiangling Depression, Jianghan Basin of South China, and its paleoclimate change

open access: yesChina Geology, 2020
: In the greater inland Jianghan Basin of South China, three salt depressions are lacking accurate geological times, of which Jiangling Depression is the largest.
Chun-lian Wang   +4 more
doaj   +1 more source

Early Cenozoic denudation of central west Britain in response to transient and permanent uplift above a mantle plume [PDF]

open access: yes, 2018
Upwelling mantle plumes beneath continental crust are predicted to produce difficult to quantify, modest uplift and denudation. The contribution of permanent and transient components to the uplift is also difficult to distinguish.
Al-Kindi   +98 more
core   +1 more source

Results of magnetostratigraphic study of the Lower Syzran subformation (Paleocene) in the north of the Saratov Right Bank (Gremyachka and Kluchy-2 sections) [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Науки о Земле
The results of petromagnetic and paleomagnetic studies of two sections of the Lower Syzran subformation (Paleocene) – Gremyachka and Klyuchi-2, located in the north of the Saratov Right Bank and represented by weakly magnetic silicites, are ...
Shelepov, Dmirtiy Aleksandrovich
doaj   +1 more source

Note “Paleocene” or “Palaeocene”

open access: yesBulletin of the Geological Society of Denmark, 1999
There seems to be some doubt as to which of the spellings “Paleocene” or “Palaeocene” should be used in manuscripts submitted for publication in Europe, while in North America the spelling “Paleocene” is standard. The latter is not surprising, as in North America the prefix paleo- is also used in terms such as Paleozoic, paleomagnetism, etc. In Europe,
openaire   +1 more source

An updated mammal biochronology and biogeography for the paleocene and early eocene of Asia [PDF]

open access: yes, 2009
Paleomammalogists often use a biochronological system of regional Land Mammal Ages (LMAs) to designate intervals of time defined by specific events in the evolutionary history of mammals.
Missiaen, Pieter, Smith, Thierry
core  

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