Micropaleontology

Just out | Impact of trace metal concentrations on coccolithophore growth and morphology: laboratory simulations of Cretaceous stress @ Biogeosciences

Just out @ Biogeosciences Impact of trace metal concentrations on coccolithophore growth and morphology: laboratory simulations of Cretaceous stress Author(s) Giulia Faucher, Linn Hoffmann, Lennart T. Bach, Cinzia Bottini, Elisabetta Erba, and Ulf Riebesell Abstract: The Cretaceous ocean witnessed intervals of profound perturbations such as volcanic input of large amounts of CO2, anoxia, eutrophication, and introduction of biologically relevant metals. Some of these extreme events were characterized by size reduction

Just out | Phylogeny, divergence time and historical biogeography of Laetiporus (Basidiomycota, Polyporales) @ BMC Evolutionary Biology

Just out @ BMC Evolutionary Biology Phylogeny, divergence time and historical biogeography of Laetiporus (Basidiomycota, Polyporales) Author(s) Jie Song and Bao-Kai Cui Abstract: Background The aim of this study was to characterize the molecular relationship, origin and historical biogeography of the species in important brown rot fungal genus Laetiporus from East Asia, Europe, Pan-America, Hawaii and South Africa. We used six genetic markers to estimate a genus-level phylogeny including (1)

Just out | Palynological data from sediments of the Hunsruckschiefer type, Lower Devonian of the SW Hunsruck, Germany @ Bulletin of Geosciences

Just out @ Bulletin of Geosciences Palynological data from sediments of the Hunsruckschiefer type, Lower Devonian of the SW Hunsruck, Germany Author(s) Brocke R, Kneidl V, Wilde V, Riegel W Abstract: The Devonian Hunsruckschiefer is an outstanding Palaeozoic Fossillagerstatte, widely known for the exceptional preservation of a highly diverse fossil assemblage at the classical sites of Gemunden and Bundenbach. However, biostratigraphical marker fossils are rare and tectonic deformation in the

Just out | Famennian (Upper Devonian) conodont zonation: revised global standard @ Bulletin of Geosciences

Just out @ Bulletin of Geosciences Famennian (Upper Devonian) conodont zonation: revised global standard Author(s) Spalletta C, Perri MC, Over DJ, Corradini C Abstract: The revision of the Famennian part of the “Late Devonian Standard Conodont Zonation” is based on the in-equivalence between biozones and time, and the rejection of the presumed single phyletic concept on which the previous zonation was based. It is also intended to simplify the zonation,

Two New Dinosaurs from North America | New Species Reported this Week

Species reported this week are very diverse, spanning from ostracoda to dinosaurs. Vertebrate are dominant: new bird, fish, primate and dinosaur species are described, and Cretaceous new species are the most numerous. The new species reported this week come from America (USA), Africa (Egypt), Europe (Italy), and Asia (China, Myanmar). Full account of fossil species reported this week: Masradapis tahai, gen. et sp. nov., a new Caenopithecine adapiform primate from the late Eocene of Egypt, was reported in Historical Biology (10th April 2017).

Just out | Strontium Distribution in Upper Devonian Conodont Elements: A Palaeobiological Proxy @ Rivista Italiana di Paleontologia e Stratigrafia

Just out @ Rivista Italiana di Paleontologia e Stratigrafia Strontium Distribution in Upper Devonian Conodont Elements: A Palaeobiological Proxy Author(s) Andrey V. Zhuravlev, Sergey S. Shevchuk Abstract: Conodonts are an extinct group of marine animals possessing debated affinities. The conodont elements are composed of calcium phosphate [apatite (CaF)] and collagen-like proteins. Distribution of Sr in the bioapatite of albid, lamellar and paralamellar tissues of some Upper Devonian conodont element crowns

Just out | A Plio–Pleistocene Caspiocypris species flock (Candoninae, Ostracoda) from the Palaeolake Tiberino (Umbria, central Italy) @ Journal of Systematic Palaeontology

Just out @ Journal of Systematic Palaeontology A Plio–Pleistocene Caspiocypris species flock (Candoninae, Ostracoda) from the Palaeolake Tiberino (Umbria, central Italy) Author(s) Marco Spadi, Elsa Gliozzi & Maria Chiara Medici Abstract: The Tiberino Basin is a wide Plio–Pleistocene intermountain basin located in central Apennine (central Italy). Its sedimentary infill is made of a thick succession of Pliocene–early Quaternary continental deposits, the oldest of which can be referred to the Fosso Bianco

Just out | Methods for isolation and quantification of microfossil fish teeth and elasmobranch dermal denticles (ichthyoliths) from marine sediments @ Palaeontologia Electronica

Just out @ Palaeontologia Electronica Methods for isolation and quantification of microfossil fish teeth and elasmobranch dermal denticles (ichthyoliths) from marine sediments Author(s) Elizabeth C. Sibert, Katie L. Cramer, Philip A. Hastings, and Richard D. Norris Abstract: Ichthyoliths–microfossil fish teeth and shark dermal scales (denticles)–are found in nearly all marine sediments. Their small size and relative rarity compared to other microfossil groups means that they have been largely ignored by

Just out | Late Pleistocene-Holocene variability in the southern Gulf of Mexico surface waters based on planktonic foraminiferal assemblages @ Marine Micropaleontology

Just out @ Marine Micropaleontology Late Pleistocene-Holocene variability in the southern Gulf of Mexico surface waters based on planktonic foraminiferal assemblages Author(s) Elsa Arellano-Torres, María Luisa Machain-Castillo   Abstract: Planktonic foraminiferal assemblages are used as proxies of surface ocean variations, as documented in five marine sediment cores from the Bay of Campeche (BoC), Gulf of Mexico (GoM), spanning the last 34,000 cal yrs BP. This paper seeks to better understand the regional history by

Just out | Strontium stratigraphy of the upper Miocene Lithothamnion Limestone in the Majella Mountain, central Italy, and its palaeoenvironmental implications @ Lethaia

Just out @ Lethaia Strontium stratigraphy of the upper Miocene Lithothamnion Limestone in the Majella Mountain, central Italy, and its palaeoenvironmental implications Author(s) Irene Cornacchia, Per Andersson, Samuele Agostini, Marco Brandano, Letizia Di Bella Abstract: The 87Sr/86Sr isotope ratio has been widely used as a physical tool to date and correlate carbonate successions due to the long Sr residence time in comparison with the ocean mixing time. If this method