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Akademický článek

Chronology of Ediacaran sedimentary and biogeochemical shifts along eastern Gondwanan margins

Autor: Marjorie D. Cantine, Alan D. Rooney, Andrew H. Knoll, Irene Gómez-Pérez, Badar al Baloushi, Kristin D. Bergmann

Publikováno v: Communications Earth & Environment, Vol 5, Iss 1, Pp 1-9 (2024)

Abstract Determining causal relationships between environmental change and early animal evolution has been limited by our lack of a robust temporal framework for the Ediacaran Period (635-539 million years ago). Here we present six new radioisotopic

Externí odkaz: https://doaj.org/article/5c01f7bc94084bad9b67f467664ffaaa

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Akademický článek

Early Pennsylvanian Lagerstätte reveals a diverse ecosystem on a subhumid, alluvial fan

Autor: Richard J. Knecht, Jacob S. Benner, Anshuman Swain, Lauren Azevedo-Schmidt, Christopher J. Cleal, Conrad C. Labandeira, Michael S. Engel, Jason A. Dunlop, Paul A. Selden, Cortland F. Eble, Mark D. Renczkowski, Dillon A. Wheeler, Mataeus M. Funderburk, Steve L. Emma, Andrew H. Knoll, Naomi E. Pierce

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)

Abstract Much of what we know about terrestrial life during the Carboniferous Period comes from Middle Pennsylvanian (~315–307 Mya) Coal Measures deposited in low-lying wetland environments1–5. We know relatively little about terrestrial ecosyste

Externí odkaz: https://doaj.org/article/3db49f3aab1e49ff9f16c66fe22a47ea

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Akademický článek

Fossil-calibrated molecular clock data enable reconstruction of steps leading to differentiated multicellularity and anisogamy in the Volvocine algae

Autor: Charles Ross Lindsey, Andrew H. Knoll, Matthew D. Herron, Frank Rosenzweig

Publikováno v: BMC Biology, Vol 22, Iss 1, Pp 1-21 (2024)

Abstract Background Throughout its nearly four-billion-year history, life has undergone evolutionary transitions in which simpler subunits have become integrated to form a more complex whole. Many of these transitions opened the door to innovations t

Externí odkaz: https://doaj.org/article/d52a6c6456724831b55a3da49389555d

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Akademický článek

Hapalosiphonacean cyanobacteria (Nostocales) thrived amid emerging embryophytes in an early Devonian (407-million-year-old) landscape

Autor: Christine Strullu-Derrien, Frédéric Fercoq, Marc Gèze, Paul Kenrick, Florent Martos, Marc-André Selosse, Karim Benzerara, Andrew H. Knoll

Publikováno v: iScience, Vol 26, Iss 8, Pp 107338- (2023)

Summary: Cyanobacteria have a long evolutionary history, well documented in marine rocks. They are also abundant and diverse in terrestrial environments; however, although phylogenies suggest that the group colonized land early in its history, paleon

Externí odkaz: https://doaj.org/article/f59a560935b7470f8435c35caf0fc6d6

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Elektronická kniha

Evolution of Primary Producers in the Sea

Autor: Paul Falkowski, Andrew H. Knoll

This text reference examines how photosynthesis evolved on Earth and how phytoplankton evolved through time – ultimately to permit the evolution of complex life, including human beings. The first of its kind, this book provides thorough coverage of

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Akademický článek

Taphonomy of Biosignatures in Microbial Mats on Little Ambergris Cay, Turks and Caicos Islands

Autor: Maya L. Gomes, Leigh Anne Riedman, Shane O’Reilly, Usha Lingappa, Kyle Metcalfe, David A. Fike, John P. Grotzinger, Woodward W. Fischer, Andrew H. Knoll

Publikováno v: Frontiers in Earth Science, Vol 8 (2020)

Microbial mats are taxonomically and metabolically diverse microbial ecosystems, with a characteristic layering that reflects vertical gradients in light and oxygen availability. Silicified microbial mats in Proterozoic carbonate successions are gene

Externí odkaz: https://doaj.org/article/4fb961fc0d27464fa82c345232dc9b20

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