Results 21 to 30 of about 876 (195)

The Cretaceous/Paleogene (K/Pg) boundary in the Mezdra and Lyutidol syncline, Vratza District (West-Fore Balkan, Bulgaria) [PDF]

Geološki Anali Balkanskoga Poluostrva, 2006
This paper discusses the unjustified assignment (based on calcareous nannofossils) of a large portion of the Maastrichtian strata in the Mezdra and Lyutidol synclines (West Fore Balkan, Bulgaria) to the Paleogene.
Jolkičev Nikola A.
doaj   +1 more source

Nitrate storage and dissimilatory nitrate reduction by eukaryotic microbes

Frontiers in Microbiology, 2015
The microbial nitrogen cycle is one of the most complex and environmentally important element cycles on Earth and has long been thought to be mediated exclusively by prokaryotic microbes.
Anja eKamp, Signe eHøgslund, Nils eRisgaard-Petersen, Peter eStief   +3 more
doaj   +1 more source

Rapoport’s Rule, the Ecotone Concept, and Salinity Gradient Predict the Distribution of Benthic Foraminifera in a Southeastern Pacific Estuary

Ecologies
This study explores the biogeographic processes shaping the distribution of benthic foraminifera along a salinity gradient in the Contaco Estuary, southeastern Pacific, Chile.
Leonardo D. Fernández, Margarita Marchant   +1 more
doaj   +1 more source

A new Foraminifer [PDF]

Annals and Magazine of Natural History, 1888
n ...
openaire   +1 more source

Diplocephalus foraminifer

, 2015
Diplocephalus foraminifer (O. P.-Cambridge, 1875) LITERATURE. — Calloni (1889). CHOROTYPE. — EUR. MACROHABITAT. — not specified.
Isaia, Marco, Paschetta, Mauro, Chiarle, Alberto   +2 more
openaire   +2 more sources

Palaeobiogeographical constraints on the distribution of foraminifers and rugose corals in the Carboniferous Tindouf Basin, South Morocco

Journal of Palaeogeography, 2013
The northern flank of the Tindouf Syncline in southern Morocco exhibits a continuous, well exposed Carboniferous succession with limestones of Late Asbian to Early Bashkirian age containing rich and diverse foraminiferal and rugose coral assemblages ...
Ian D. Somerville, Pedro Cózar, Ismail Said, Daniel Vachard, Paula Medina-Varea, Sergio Rodríguez   +5 more
doaj   +1 more source

New results of microfaunal and geochemical investigations in the Permian–Triassic boundary interval from the Jadar Block (NW Serbia)

Geologica Carpathica, 2018
Detail results of microfaunal, sedimentological and geochemical investigations are documented from a newly discovered section of the Permian–Triassic boundary (PTB) interval in the area of the town of Valjevo (northwestern Serbia).
Sudar Milan N., Kolar-Jurkovšek Tea, Nestell Galina P., Jovanović Divna, Jurkovšek Bogdan, Williams Jeremy, Brookfield Michael, Stebbins Alan   +7 more
doaj   +1 more source

A deep-sea agglutinated foraminifer tube constructed with planktonic foraminifer shells of a single species [PDF]

Journal of Micropalaeontology, 2018
Abstract. Agglutinated foraminifera are marine protists that show apparently complex behaviour in constructing their shells, involving selecting suitable sedimentary grains from their environment, manipulating them in three dimensions, and cementing them precisely into position.
Pearson, Paul, Drury, Anna Joy, Dunkley Jones, Tom, Hatfield, Robert, Holbourn, Ann, Kulhanek, D.K., Opdyke, Bradley, Ravelo, Christina, Sagawa, T, Wurtzel, Jennifer, Xu, Jian   +10 more
openaire   +6 more sources

Microfacies and Stratigraphic Observations from the Bulz Dolomite Formation (Apuseni Mountains, Romania): Implications for Paleoenvironment and Regional Correlation

Geosciences
The Middle Triassic Bulz Dolomite Formation in the Apuseni Mountains (Romania) lacks detailed microfacies documentation and paleoenvironmental reconstruction, leaving its regional correlation unresolved.
Béla Raucsik, Andrea Varga, Olga Piros, Andrea Szuromi Korecz, Elemér Pál-Molnár   +4 more
doaj   +1 more source

Prevalence of insulin dysregulation in a sport horse population as determined by traditional and stall‐side testing

Equine Veterinary Journal, EarlyView.
Abstract Background The prevalence of insulin dysregulation (ID) has not been investigated in sport horses. Stall‐side insulin assays offer convenience but need further validation. Objectives To determine the prevalence of and risk factors for ID in a sport horse population using an oral sugar test (OST) and assess agreement between stall‐side and ...
Kimberly L. Hallowell, Caitlyn R. Horne, Cary S. Miller, Sara R. Tufts, Katarzyna Dembek, Kim R. Love, Andrew W. van Eps, Lauren V. Schnabel   +7 more
wiley   +1 more source