Results 121 to 130 of about 16,431 (288)

Paleozoic Foraminifers [PDF]

open access: yesScience, 1969
J. Kane, J. Garrison, J. Wytzka
openaire   +1 more source

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

PRELIMINARY OBSERVATIONS ON THE UPPER CRETACEOUS CORAL-RUDIST FACIES OF OSTUNI (SOUTH-EASTERN MURGE, APULIA)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The Upper Cretaceous carbonate platform deposits of Ostuni have been studied from a stratigraphical, palaeontological and palaeoecological point of view.
ANGELA LAVIANO
doaj  

Late Eocene bryozoan faunas in the Alpine-Carpathian region - a comparison [PDF]

open access: yes, 1999
Twelve Priabonian (Late Eocene) bryozoan faunas of the Alps and Carpathians, collected from shallow to deep marine sediments, are compared by similarity indices.
Kázmér, Miklós, Zágorsek, Kamil
core  

Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi   +3 more
wiley   +1 more source

Zonation by ammonites and foraminifers of the Vraconnian-Turonian interval: A comparison of the Boreal and Tethyan domains (NW Europe / Central Tunisia)

open access: yesCarnets de Géologie, 2008
Since the end of the 19th century the interval comprising the uppermost Upper Albian, the Cenomamian, the Turonian and the basal Coniacian has been subdivided, first into ammonite zones, then, beginning in the middle of the 20th century, into zones of ...
Amédro Francis, Robaszynski Francis
doaj  

Carbonate sedimentology: An evolved discipline

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

Foraminiferal detoxification breakdown induced by fatal levels of TiO2 nanoparticles

open access: yesFrontiers in Marine Science
The increase discharge of titanium dioxide (TiO2) nanoparticles, derived from engineered material waste, exerts a detrimental impact on both the marine ecosystem and public health.
Yuka Inagaki   +7 more
doaj   +1 more source

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