Results 11 to 20 of about 2,843 (141)

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+7 more sources

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

A new clupeid fish from the upper Miocene of Greece: A possible Hilsa relative from the Mediterranean [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Much remains to be learned about the past diversity and evolutionary history of the Clupeidae (herrings, shads and allies), owing to the frequently subtle differences between modern taxa and the moderate preservational quality of some fossils.
Charalampos Kevrekidis   +3 more
doaj   +1 more source

A new rhynchocephalian (Reptilia: Lepidosauria) from the Late Jurassic of Solnhofen (Germany) and the origin of the marine Pleurosauridae [PDF]

open access: yesRoyal Society Open Science, 2017
A new rhynchocephalian is described based on a recently discovered and well-preserved specimen from the Late Jurassic (Kimmeridgian) marine limestones of Solnhofen, Bavaria.
Gabriel S. Bever, Mark A. Norell
doaj   +1 more source

PALEONTOLOGY, STRATIGRAPHY, PALEOENVIRONMENT AND PALEOGEOGRAPHY OF SIXTY-THREE CAMPANIAN-NEOGENE TETHYAN BENTHIC FORAMINIFERAL GENERA AND SPECIES OF ANAN B- SUBORDER LAGENINA [PDF]

open access: yesGeological Behavior, 2023
This study represents the second part of the erected assemblage of benthic foraminiferal genera and species of Anan, which related to the Suborder Lagenina, after the first part which belongs to the taxa of the Suborders Textulariina and Miliolina (Anan,
Haidar Salim Anan
doaj   +1 more source

PALEONTOLOGY AND EVOLUTIONARY LINEAGES OF THE DIAGNOSTIC BENTHIC FORAMINIFERAL GENUS ORTHOKARSTENIA [PDF]

open access: yesGeological Behavior, 2022
This work is focused on the members of the Late Cretaceous-Early Paleogene (K-Pg) diagnostic benthic foraminiferal genus Orthokarstenia which is regionally important in paleontology and stratigraphic correlations.
Haidar Salim Anan
doaj   +1 more source

40 years of field work in the Triassic marine vertebrate sites [PDF]

open access: yesResearch & Knowledge, 2017
During the first 70 years of the XX century very few researches have concerned the marine Triassic fishes. They were prevalently related to the many scientific expeditions carried out in the first half of that century in localities situated along the ...
Andrea Tintori
doaj   +1 more source

Evaluation of the performance of a hydraulic barrier by the Null space Monte Carlo method

open access: yesAcque Sotterranee, 2019
A gasoline leak caused the contamination of a shallow alluvial aquifer in an urbanized area in Northern Italy. A rapid intervention was conceived to stop the spreading of contamination: a hydraulic barrier has been placed downstream of the source to ...
Giovanni Formentin   +3 more
doaj   +1 more source

Quantifying Abundance and Mapping Distribution of Loggerhead Turtles in the Mediterranean Sea Using Aerial Surveys: Implications for Conservation

open access: yesDiversity, 2023
In the Mediterranean, incidental captures in fishing gear contribute to the high mortality of loggerhead turtles (Caretta caretta). Understanding the effects of bycatch is complex and requires robust knowledge of baseline population parameters such as ...
Nino Pierantonio   +2 more
doaj   +1 more source

COMPOSITION AND FEATURES OF GEOGRAPHICAL DISTRIBUTION OF FAUNA OF ORIBATID MITES (ACARIFORMES, ORIBATIDA) IN THE TETHYS DESERT-STEPPE REGION

open access: yesЮг России: экология, развитие, 2017
Aim. The aim is to identify the similarities and differences of fauna of oribatid mites (Acariformes, Oribatida) in the Tethys desert-steppe region and analyze geographic relationships of the studied area.Methods.
G. M. Abdurakhmanov   +3 more
doaj   +1 more source

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