Results 11 to 20 of about 1,084 (191)
Developmental principles: fact or fiction. [PDF]
ScientificWorldJournal, 2012 While still at school, most of us are deeply impressed by the underlying principles that so beautifully explain why the chemical elements are ordered as they are in the periodic table, and may wonder, with the theoretician Brian Goodwin, “whether there might be equally powerful principles that account for the awe-inspiring diversity of body forms in ...
Durston AJ.
europepmc +2 more sources
Papers in Palaeontology, Volume 9, Issue 6, November/December 2023., 2023 Abstract Fine‐grained, siliciclastic units of the >1642 ± 3.9 Ma late Palaeoproterozoic Limbunya Group, Birrindudu Basin host rich, well‐preserved organic‐walled microfossil assemblages that include members of total‐group eukaryotes. These assemblages include taxa characteristic of this interval such as Tappania plana and Satka favosa, as well as less ...
Leigh Anne Riedman +4 more
wiley +1 more source
The continuing debate on deep molluscan phylogeny: evidence for Serialia (Mollusca, Monoplacophora + Polyplacophora). [PDF]
Biomed Res Int, 2013 Molluscs are a diverse animal phylum with a formidable fossil record. Although there is little doubt about the monophyly of the eight extant classes, relationships between these groups are controversial. We analysed a comprehensive multilocus molecular data set for molluscs, the first to include multiple species from all classes, including five ...
Stöger I +6 more
europepmc +2 more sources
Ediacaran–Cambrian bioturbation did not extensively oxygenate sediments in shallow marine ecosystems
Geobiology, Volume 21, Issue 4, Page 435-453, July 2023., 2023 Abstract The radiation of bioturbation during the Ediacaran–Cambrian transition has long been hypothesized to have oxygenated sediments, triggering an expansion of the habitable benthic zone and promoting increased infaunal tiering in early Paleozoic benthic communities.
Alison T. Cribb +4 more
wiley +1 more source
Seaward‐Dipping Reflector Influence on Seafloor Magnetostratigraphy—A Pelotas Basin View
Geophysical Research Letters, Volume 49, Issue 23, 16 December 2022., 2022 Abstract Previous works used marine magnetic survey data and interpreted magnetic anomalies related to seaward‐dipping reflectors (SDRs) as oceanic crust or SDR age constraints in the South Atlantic Ocean. However, we advise against using SDR‐related magnetic anomalies to constrain ages because of the mostly low‐dipping geometry causing the overlapping
Henrique Serratt +6 more
wiley +1 more source
Correlation of Proterozoic-Phanerozoic deep wells sections targeting Aldan-Maya area petroleum potentiality estimation [PDF]
Нефтегазовая геология: Теория и практика, 2022 The article discusses the debatable issues of well log correlation of the Riphean, Vendian, Cambrian and Mesozoic sections, promising for the search for oil and gas in the Aldan-Maya potentially petroleum bearing region. The author's proposed correlation
Fomin A.M. +3 more
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The oldest mid-oceanic carbonate buildup complex: Setting and lithofacies of the Vendian (Late Neoproterozoic) Baratal limestone in the Gorny Altai Mountains, Siberia [PDF]
Proc Jpn Acad Ser B Phys Biol Sci, 2004 Uchio Y +5 more
europepmc +3 more sources
Obesity Reviews, Volume 22, Issue S5, Octubre 2021., 2021 Resumen Aunque se han hecho avances en el desarrollo y aplicación a gran escala de intervenciones eficaces contra la obesidad infantil, los retos siguen siendo importantes. Nuestro objetivo era comprender las causas del éxito de Estados Unidos y los países latinoamericanos en la implementación de políticas y programas (PYP) contra la obesidad e ...
Rafael Pérez‐Escamilla +6 more
wiley +1 more source
Provenance of zircon of the lowermost sedimentary cover, Estonia, East-European Craton [PDF]
Bulletin of the Geological Society of Finland, 1999 Bulk and accessory mineral composition of fresh and weathered crystalline rocks, and sedimentary deposits overlying the crystalline-sedimentary unconformity have been examined in core samples from 28 drill holes in Estonia.
M. Konsa, V. Puura
doaj +1 more source