Results 141 to 150 of about 43,556 (278)

Ecological variability of Hippopotamus antiquus from the late Early–Middle Pleistocene of Megalopolis Basin (Greece): Evidence for dynamic habitats in a glacial microrefugium

Boreas, EarlyView.
This study investigates the ecology of the extinct European Hippopotamus from the late Early–Middle Pleistocene (c. 900–400 ka) sequence of the Megalopolis Basin, a glacial microrefugium for temperate taxa in southern Greece. Using stable carbon (δ13C) and oxygen (δ18O) isotope analyses and microwear analyses of Hippopotamus dental elements, we ...
Effrosyni Roditi, Gabriele Russo, Hervé Bocherens, George E. Konidaris, Athanassios Athanassiou, Florent Rivals, Vangelis Tourloukis, Eleni Panagopoulou, Panagiotis Karkanas, Katerina Harvati   +9 more
wiley   +1 more source

Integrative phylogenomics uncovers hidden diversity and repeated cave colonizations in Dinaric pseudoscorpions

Cladistics, EarlyView.
Abstract Subterranean ecosystems harbour exceptional biodiversity shaped by adaptation to extreme environments, yet remain poorly explored. Cave organisms, restricted to small, isolated populations, are extinction‐prone, making integrative species delimitation essential for biodiversity assessment and conservation.
Dora Hlebec, Alba Enguídanos García, Marita Machata, Miquel A. Arnedo   +3 more
wiley   +1 more source

Development of Arsenopyrite Reference Materials (Sacra and Niko) for In situ Multiple Sulfur Isotope Measurement

Geostandards and Geoanalytical Research, EarlyView.
Key Points New arsenopyrite reference materials (Niko and Sacra) for in situ multiple sulfur isotope measurement. Niko and Sacra are homogenous, near‐stoichiometric arsenopyrite. Niko serves as a primary matrix‐matched reference material, with lower measurement repeatability; Sacra is recommended as a secondary reference and quality control material ...
Bruna Coldebella, Guillaume Barré, Crystal LaFlamme, Laure Martin, Pierre Cartigny   +4 more
wiley   +1 more source

Palaeobiogeography and the Ordovician and Mesozoic-Cenozoic biotic radiations

, 2002
Curves of taxonomic diversity through geological time consistently show major evolutionary radiations during the Ordovician Period and from the mid-Mesozoic to the present day.
Crame, J.A., Owen, A.W.
core   +3 more sources

Fossilized gill soft tissues in Mesozoic freshwater unionoid bivalves: reinvestigation and new evidence of the evolution of adaptation to the freshwater environment

Acta Palaeontologica Polonica
Large freshwater unionoid bivalves today are a globally distributed and diverse group, with a history dating back to the Triassic. Their evolutionary success largely depends on their reproductive behavior, today, they all take maternal care via brooding ...
Aleksandra Skawina, Renato Pirani Ghilardi   +1 more
doaj   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source

Heterodonty in the teeth of the turiasaurian sauropod from Angeac‐Charente (Early Cretaceous, southwestern France): Comparison of anatomical and geometric morphometric approaches

Journal of Anatomy, EarlyView.
Turiasaurian teeth from Angeac‐Charente exhibit five dental morphotypes and reveal clear heterodonty and anteroposterior size gradient. Qualitative comparative anatomy quickly and efficiently identifies morphotypes, while 3D geometric morphometrics combined with machine learning refine ambiguous cases, demonstrating that qualitative and quantitative ...
Clémence Le Gouellec, Ronan Allain, Jean Goedert, Romain Pintore, Jackson Carter, Rafael Royo‐Torres, Dominique Augier, Raphaël Cornette   +7 more
wiley   +1 more source

Economic geology of the Waikato [PDF]

, 1967
The Waikato contributes between 20 and 25 per cent of New Zealand's mineral production. Aggregate from Mesozoic rocks ranges from good (greywacke) to poor (argillite), with detailed differences being related to the position of the deposit within the New
Kear, David
core  

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 more
wiley   +1 more source

(Table 14) Trace element contents in Mesozoic-Cenozoic deposits from DSDP Hole 41-369

, 1982
(Table 14) Trace element contents in Mesozoic-Cenozoic deposits from DSDP Hole 41 ...
Igor M Varentsov (6886121), Varentsov, Igor M   +1 more
core   +1 more source