Results 111 to 120 of about 115,713 (383)

Early–middle Cambrian stratigraphy and faunas from northern Siberia

Acta Palaeontologica Polonica, 2022
New assemblages of skeletal fossils chemically extracted from carbonates of the Cambrian Stage 2–Drumian Stage are reported from the lower reaches of the Lena River as well as from the Khorbusuonka, Malaya Kuonamka, and Bol’shaya Kuonamka rivers in ...
ARTEM KOUCHINSKY, RUARIDH ALEXANDER, STEFAN BENGTSON, FRED BOWYER, SÉBASTIEN CLAUSEN, LARS E. HOLMER, KIRILL A. KOLESNIKOV, IGOR V. KOROVNIKOV, VLADIMIR PAVLOV, CHRISTIAN B. SKOVSTED, GALINA USHATINSKAYA, RACHEL WOOD, ANDREY Y. ZHURAVLEV   +12 more
doaj   +1 more source

Cambrian

, 1997
The initial Cambrian record in most of the project area consists of medial BonniaðOlenellus Zone and younger Lower Cambrian strata overlying a Precambrian surface of various ages. The Richardson Trough came into existence during an Early Cambrian transgression, and continued to function as a negative entity, separating the Mackenzie Platform to the ...
openaire   +1 more source

Decoupling biogeochemical records, extinction, and environmental change during the Cambrian SPICE event

Science Advances, 2017
Local depositional variation affects geological recording of globally recognized biogeochemical events such as the Cambrian SPICE. Several positive carbon isotope excursions in Lower Paleozoic rocks, including the prominent Upper Cambrian Steptoean ...
J. Schiffbauer, J. Huntley, D. Fike, M. Jeffrey, J. Gregg, K. Shelton   +5 more
semanticscholar   +1 more source

Mapping molluscan endocrinology: a systematic and critical appraisal

Biological Reviews, EarlyView.
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Konstantinos Panagiotidis, Thomas H. Miller, Olwenn V. Martin, Alice Baynes   +3 more
wiley   +1 more source

Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina [PDF]

, 2015
The new obolid Torobolus subplanus gen. et sp. nov., from the lower Temadocian Devendeus Formation, the new species Libecoviella tilcarensis and Leptembolon argentinum, and Ectenoglossa sp.
Benedetto, Juan Luis Arnaldo, Muñoz, Diego Fernando   +1 more
core  

⁸⁷Sr/⁸⁶Sr chemostratigraphy of Neoproterozoic Dalradian limestones of Scotland and Ireland: constraints on depositional ages and time scales [PDF]

, 2004
New calcite ⁸⁷Sr/⁸⁶Sr data for 47 limestones from the metamorphosed and deformed Neoproterozoic-Cambrian Dalradian Supergroup of Scotland and Ireland are used to identify secular trends in seawater <sup>
Ellam, R.M., Fallick, A.E., Graham, C.M., Thomas, C.W.   +3 more
core   +1 more source

Sustainability Reporting and Performance: Do Italian Companies Manage Their Narratives in Mandatory Settings?

Business Strategy and the Environment, EarlyView.
ABSTRACT Sustainability disclosure is a topic of growing interest worldwide, especially after the adoption of the Directive 2014/95/EU (NFRD), which mandates specific classes of companies in the European Union to disclose a series of information regarding ESG issues.
Maria Chiara Demartini, Sara Trucco, Valentina Beretta   +2 more
wiley   +1 more source

Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals

Nature Communications, 2015
The early diversification of animals (∼630 Ma), and their development into both motile and macroscopic forms (∼575–565 Ma), has been linked to stepwise increases in the oxygenation of Earth’s surface environment.
Xi Chen, H. Ling, D. Vance, G. Shields-Zhou, Maoyan Zhu, S. Poulton, L. Och, Shaoyong Jiang, Da Li, L. Cremonese, C. Archer   +10 more
semanticscholar   +1 more source

Questioning the rise of gelatinous zooplankton in the World's oceans [PDF]

, 2012
During the past several decades, high numbers of gelatinous zooplankton species have been reported in many estuarine and coastal ecosystems. Coupled with media-driven public perception, a paradigm has evolved in which the global ocean ecosystems are ...
Acuña, Alenka Malej, Atkinson, Beaglehole, Brodeur, Brodeur, Butterfield, Carlos M. Duarte, Cathy H. Lucas, Chen, Claudia E. Mills, Condon, Condon, Costello, Dakin, Daly, Daryanabard, Dawson, Dong, Ducklow, Edwards, Eiane, Gaillard, Galigher, Gand, Gorokhova, Goy, Graham, Grassle, Hagadorn, Hamner, Hamner, Herdman, Hermes Mianzan, Jackson, Jennifer E. Purcell, Kelly L. Robinson, Kelly R. Sutherland, Kogovšek, Kott, Kylie A. Pitt, Laurence P. Madin, Lavaniegos, Lotan, Lynam, Lynam, Macgillivray, Madin, Martin, Martin, Mary Beth Decker, Mayer, Michael N Dawson, Mills, Mills, Mills, Mills, Nel, Parsons, Pauly, Pauly, Pauly, Pickerill, Purcell, Péron, Quoy, Richardson, Rigby, Robert H. Condon, Russell, Russell, Sheard, Shin-ichi Uye, Stasinska, Stefan Gelcich, Steven H.D. Haddock, Strathmann, Sutherland, Uye, Uye, Vinogradov, William M. Graham   +81 more
core   +4 more sources

Waiting for a Release: The Expectation in Virtual Gaming Communities

Journal of Consumer Behaviour, EarlyView.
ABSTRACT This study examines how virtual gaming communities influence and maintain player expectations before, during, and after a game's release. A mixed‐methods study was conducted, comprising a netnography followed by an experiment. First, a netnographic study was conducted over 12 months, tracking communities to understand player behavior and ...
Lucas Lopes Ferreira de Souza, Márcia de Freitas Duarte, Felipe Gerhard, João Pedro Pessoa se Castro Pereira, João Victor Locio Silveira   +4 more
wiley   +1 more source