Results 21 to 30 of about 42,953 (277)

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

PALEONTOLOGY, PALEOGEOGRAPHY, PALEOENVIRONMENT OF THE CAMPANIAN NEOGENE TETHYAN FORAMINIFERAL GENERA AND SPECIES OF ANAN A- SUBORDERS TEXTULARIINA AND MILIOLINA [PDF]

open access: yesScience Heritage Journal, 2023
During the last four decades ago, fifty-seven (54 agglutinated and 3 porcelaneous) benthic foraminiferal species and related to 23 genera have been erected by the present author, which start at 1984, which are recoded from many countries around the ...
Haidar Salim Anan
doaj   +1 more source

PALEOBIOGEOGRAPHY OF SOME EGYPTIAN AND PAKISTANIAN BENTHIC FORAMINIFERAL SPECIES IN THE NORTHERN TETHYS [PDF]

open access: yesEarth Sciences Pakistan, 2021
Twenty-one benthic foraminiferal species were originally erected from the Southern Tethys, 13 species from Egypt, and 8 species from Pakistan. Some of these species were recorded from different localities in the Northern Tethys: France, Spain, Italy ...
Haidar Salim Anan
doaj   +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

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

Mercury deposition in Western Tethys during the Carnian Pluvial Episode (Late Triassic)

open access: yesScientific Reports, 2021
The Late Triassic Carnian Pluvial Episode (CPE) was a time of biological turnover and environmental perturbations. Within the CPE interval, C-isotope and sedimentary records indicate multiple pulses of depleted carbon into the atmosphere–ocean system ...
Mina Mazaheri-Johari   +5 more
semanticscholar   +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

Middle Eocene carbonate platforms of the westernmost Tethys

open access: yes, 2021
A study of the paleoenvironmental evolution of the middle Eocene platforms recognized in the westernmost Tethys has been carried out in the well-exposed middle Eocene succession from Sierra Espuna-Mula basin (Betic Cordillera, S Spain). Eight microfacies
M. Martín-Martín   +3 more
semanticscholar   +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

Geological, geophysical and plate kinematic constraints for models of the India-Asia collision and the post-Triassic central Tethys oceans

open access: yesEarth-Science Reviews, 2020
In this study, we integrate bedrock datasets, observations of subducted slabs in the mantle, and plate kinematic constraints to constrain models for the India-Asia collision and the central Tethys oceans.
A. Parsons   +3 more
semanticscholar   +1 more source

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