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pro vyhledávání: '"Sarah M. Tweedt"'
Autor:
Kaveh Samimi-Namin, Tito Monteiro da Cruz Lotufo, Bert W. Hoeksema, Sarah M. Tweedt, Christopher Meyer, Gustav Paulay
Publikováno v:
Diversity, Vol 16, Iss 4, p 221 (2024)
We document aggregations of an undescribed benthic solitary tunicate of the family Pyuridae from the Arabian Sea. This new genus was found forming dense thickets in shallow rocky substrates around Masirah Island and the Dhofar area in Oman. Such aggr
Externí odkaz:
https://doaj.org/article/3094919017334b08bf1c07a2bc85b6f4
Autor:
Thomas H. Boag, Douglas H. Erwin, Rachel A. Racicot, Simon A.F. Darroch, Sarah M. Tweedt, Sara J. Mason, Marc Laflamme
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 459:198-208
It has been proposed that the terminal Neoproterozoic Ediacara biota were driven to extinction by the evolution of metazoan groups capable of engineering their environments (the ‘biotic replacement’ model). However, evidence for an overlapping ec
Autor:
Gerard J.B. Germs, Brandt M. Gibson, Thomas H. Boag, Rachel A. Racicot, Alison Cribb, John Almond, James D. Schiffbauer, Charlotte G. Kenchington, Helke Mocke, Simon A.F. Darroch, Katie Maloney, Luis A. Buatois, Bryce E. Koester, Gretchen R. O'Neil, Sarah M. Tweedt, Marc Laflamme, Katherine A. Turk, Emily F. Smith
Publikováno v:
Earth-Science Reviews. 212:103435
The Ediacaran–Cambrian transition marks one of the most important geobiological revolutions in Earth History, including multiple waves of evolutionary radiation and successive episodes of apparent mass extinction. Among the proposed drivers of thes
Autor:
Sarah M. Tweedt
Publikováno v:
Integrative and comparative biology. 57(3)
The arthropod body plan is widely believed to have derived from an ancestral form resembling Cambrian-aged fossil lobopodians, and interpretations of morphological and molecular data have long favored this hypothesis. It is possible, however, that ap
Owing to the lack of temporally well-constrained Ediacaran fossil localities containing overlapping biotic assemblages, it has remained uncertain if the latest Ediacaran ( ca 550–541 Ma) assemblages reflect systematic biological turnover or environ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10b53c79048dbdc226afcd2324e8aa92
https://europepmc.org/articles/PMC5524506/
https://europepmc.org/articles/PMC5524506/
Publikováno v:
Gondwana Research. 23:558-573
The Ediacaran–Cambrian transition signals a drastic change in both diversity and ecosystem construction. The Ediacara biota (consisting of various metazoan stem lineages in addition to extinct eukaryotic clades) disappears, and is replaced by more
Autor:
Douglas H. Erwin, Sarah M. Tweedt, Davide Pisani, Marc Laflamme, Erik A. Sperling, Kevin J. Peterson
Publikováno v:
Science. 334:1091-1097
Diverse bilaterian clades emerged apparently within a few million years during the early Cambrian, and various environmental, developmental, and ecological causes have been proposed to explain this abrupt appearance. A compilation of the patterns of
Autor:
Douglas H. Erwin, Sarah M. Tweedt
Publikováno v:
Evolutionary Ecology. 26:417-433
Organismal modifications to their physical and chemical environment play a significant role in structuring many modern ecosystems, and experimental evidence suggests that such behavior can increase diversity. Despite the important role such activitie
Publikováno v:
Geological Society of America Abstracts with Programs.
Autor:
Rachel A. Racicot, Douglas H. Erwin, David T. Johnston, Alex S. Morgan, Simon A.F. Darroch, Erik A. Sperling, Sara J. Mason, Paul M. Myrow, Sarah M. Tweedt, Thomas H. Boag, Marc Laflamme
Publikováno v:
Proceedings of the Royal Society B: Biological Sciences. 282:20151003
The latest Neoproterozoic extinction of the Ediacara biota has been variously attributed to catastrophic removal by perturbations to global geochemical cycles, ‘biotic replacement’ by Cambrian-type ecosystem engineers, and a taphonomic artefact.