Results 41 to 50 of about 6,571 (197)

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Lithostratigraphy of a long, fossiliferous Oligocene sequence: Revisiting Saint Jacques, Nei Mongol, China

Frontiers in Earth Science, 2023
For a hundred years the Saint Jacques area has been known to produce rich Oligocene vertebrate fossils, yet only a handful of previous studies have focused on this area.
Bian Wang, Bian Wang, Zhao-Qun Zhang, Zhao-Qun Zhang, Zhao-Qun Zhang, Yuan-Qing Wang, Yuan-Qing Wang, Yuan-Qing Wang, Qian Li, Qian Li, Bin Bai, Bin Bai, Yan Liu, Yan Liu, Fang-Yuan Mao, Fang-Yuan Mao, Hai-Bing Wang, Hai-Bing Wang, Jian Wang, Jian Wang, Yan-Xin Gong, Yan-Xin Gong, Li-Ping Dong, Li-Ping Dong, Li-Hua Wang, Li-Hua Wang, Hai-Dan Ma, Hai-Dan Ma, Ran-Cheng Xu, Ran-Cheng Xu, Xiao-Yang Wang, Xiao-Yang Wang   +31 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Winged Fruits of Deviacer in the Oligocene from the Ningming Basin in Guangxi, South China. [PDF]

PLoS ONE, 2015
Deviacer guangxiensis Chen & Manchester sp. nov. is described based on asymmetric samaras from the Oligocene Ningming Formation in Guangxi, South China, representing the first documentation of Deviacer fossils in Asia.
Yunfa Chen, Steven R Manchester
doaj   +1 more source

Connecting the distribution and diversification of marine plants

Oikos, EarlyView.
Integration of the evolutionary history with distribution of extant species is necessary to explain present‐day diversity, particularly for ‘foundation' species, such as seagrasses, which create habitats of socioecological relevance. Here, we resolved if varying evolutionary history of seagrass families has imprinted the distribution ranges of extant ...
Fernando Tuya, Javier Martínez‐ Pérez, Álvaro Fueyo, Néstor E. Bosch   +3 more
wiley   +1 more source

Oligocene molasse sedimentation in the Central Taurides: Records of the onset of extensional tectonic regime

Bulletin of the Mineral Research and Exploration, 2020
The lacustrine units have been deposited in the Ermenek, Bucakkışla, Korucuk and Çamlıyayla basins in the Central Taurides since early Oligocene. In this study, structural features and stratigraphical properties of Oligocene basins have been described in
Ayhan Ilgar, Tolga Esi̇rtgen, Banu Türkmen Bozkurt, Serap Demi̇rkaya   +3 more
doaj   +1 more source

Late Oligocene Formation of the Pearl River Triggered by the Opening of the South China Sea

Geophysical Research Letters, 2023
The Pearl River is one of the largest rivers entering the South China Sea, yet its initiation time remains debated, a topic we address using Pb isotopes in detrital K‐feldspar.
Zengjie Zhang, J. Stephen Daly, Yuntao Tian, Chao Lei, Xilin Sun, Eszter Badenszki, Yonghui Qin, Jie Hu   +7 more
doaj   +1 more source

Genetic and phenotypic variation in wood tiger moths from the Caucasus: insights into male warning color variation

Insect Science, EarlyView.
Coloration serves several fitness‐related functions, including thermoregulation, immunity, social signaling, sexual selection, and predator avoidance. Consequently, color polymorphism can have a significant impact on a species’ interactions with its environment, including its relationships with predators, prey, and potential mates. The wood tiger moth (
Juan A. Galarza, Ossi Nokelainen, Melanie N. Brien, Cristina Ottocento, Bibiana Rojas, Janne K. Valkonen, Tamar Chunashvili, Tõnis Tasane, Chris D. Jiggins, Johanna Mappes   +9 more
wiley   +1 more source

A new hoverfly genus from the Oligocene of France with unusual morphology

Acta Palaeontologica Polonica
Here, we describe Intricodon cryptodaemoniacus, a new fossil genus and species of hoverfly (Diptera: Syrphidae), representing the second described hoverfly from the middle Oligocene of Céreste (Luberon, Southern France). It has unique, highly specialized
Valentin Nidergas, Jiří Hadrava, Pauline Coster, André Nel   +3 more
doaj   +1 more source

UVIGERINELLOIDES: A NEW ROTALIID BENTHIC FORAMINIFERAL GENUS [PDF]

Science Heritage Journal
This study describes a new Paleogene Rotaliid genus Uvigerinelloides from the middle Oligocene, Septarienthon of Hermsdorf, near Berlin, Germany. It is characterized by fusiform triserial perforate calcareous test, chambers regularly triserial throughout,
Haidar Salim Anan
doaj   +1 more source