Results 21 to 30 of about 8,428 (209)

Pennsylvanian stratigraphy in South-Central Idaho and adjacent areas

The Pennsylvanian rocks in south-central Idaho and adjacent areas consist of three main facies: a platform facies, a shelf facies, and a marginal basin facies.
Axelsen, Claus
core   +6 more sources

A prospective highlight on exosomal nanoshuttles and cancer immunotherapy and vaccination [PDF]

BioImpacts, 2015
Introduction: Exosomes (EXOs) and ectosomes (ECTOs) are nanoscale membranous extracellular vesicles (EVs) derived from different cells mediating various cellular communications.
Mohammad A. Rafi, Yadollah Omidi
doaj   +1 more source

Taphonomy and paleoecology of fauna and flora from deltaic sandstones of Mospinka Formation (Middle Carboniferous) of Donets Basin

Geo&Bio, 2019
The taphonomic and ecological features of the predominantly non-marine fauna and terrestrial flora from two deltaic sandstones in the middle part of the Mospinka Formation (Upper Bashkirian, Lower Pennsylvanian) were studied.
Vitaliy Dernov
doaj   +1 more source

Influence of terrestrial sedimentation in Pennsylvanian rocks of Croatia

Geologia Croatica, 2012
Sedimentary rocks of Pennsylvanian age outcrop at several regions in Croatia. Most of these rocks were deposited in a marine environment, in different tectonic units: Karst (External) Dinarides, Internal Dinarides and Tisia.
Jasenka Sremac
doaj   +1 more source

Palaeoecological significance of the trace fossil Circulichnis Vyalov, 1971 from the Carboniferous of the Donets Basin, Ukraine

Geologija
The ichnogenus Circulichnis Vyalov is a horizontal a ring- or ellipse-shaped burrow and/or locomotion trace of an unknown producer, most likely an annelid or a “worm”, preserved on the bedding plane. This ichnogenus is known over a wide
Vitaly Dernov
doaj   +1 more source

From widespread Mississippian to localized Pennsylvanian extension in central Spitsbergen, Svalbard [PDF]

Solid Earth, 2018
In the Devonian–Carboniferous, a rapid succession of clustered extensional and contractional tectonic events is thought to have affected sedimentary rocks in central Spitsbergen, Svalbard.
J.-B. P. Koehl, J.-B. P. Koehl, J. M. Muñoz-Barrera   +2 more
doaj   +1 more source

Response of Soils and Soil Ecosystems to the Pennsylvanian–Permian Climate Transition in the Upper Fluvial Plain of the Dunkard Basin, Southeastern Ohio, USA

Geosciences, 2018
Direct exposure of paleosols to the atmosphere during formation make them ideal for reconstructing paleoclimate. Paleosol and ichnofossil properties are dependently linked making it important to study them in tandem, to avoid errors in interpretation ...
Daniel I. Hembree, Jennifer L. Carnes
doaj   +1 more source

At last, a Pennsylvanian stem-stonefly (Plecoptera) discovered

BMC Evolutionary Biology, 2011
Background Stem-relatives of many winged insect orders have been identified among Pennsylvanian fossils (Carboniferous Period). Owing to their presumed 'basal' position in insect phylogeny, stoneflies were expected to occur at this period.
Stark Bill, Kondratieff Boris, Cui Yingying, Béthoux Olivier, Ren Dong   +4 more
doaj   +1 more source

Ginkgophytopsis Høeg 1967 emend., a reclassification of enigmatic cuneate leaves of the Euramerican Upper Carboniferous

Acta Palaeobotanica
In Upper Carboniferous Euramerican floras, the generic affinities of enigmatic, cuneate to flabellate “Ginkgo-like” leaves remain poorly understood. The species Cordaites grandifolius (USA), Noeggerathia flabellata (U.K.) and Ginkgophyllum delvalii
Mason M.Z. Pratt, Michael P. Donovan, William A. DiMichele, Hans Kerp   +3 more
doaj   +1 more source

The Mississippian-Pennsylvanian and Pennsylvanian-Pleistocene Unconformities in Lucas County, Iowa [PDF]

, 1925
The object of this paper is to make accessible quantitative data on the magnitude of the Mississippian- Pennsylvanian and Pennsylvanian-Pleistocene unconformities in south-central Iowa. This data is here presented by permission of the State Geologist, Dr.
Lugn, A. L.
core   +1 more source