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Evolutionary radiation of shallow-water Lucinidae (Bivalvia with endosymbionts) as a result of the rise of seagrasses and mangroves

2014; Geological Society of America; Volume: 42; Issue: 9 Linguagem: Inglês

10.1130/g35942.1

1943-2682

Steven M. Stanley,

Marine and coastal plant biology

Research Article| September 01, 2014 Evolutionary radiation of shallow-water Lucinidae (Bivalvia with endosymbionts) as a result of the rise of seagrasses and mangroves Steven M. Stanley Steven M. Stanley Department of Geology and Geophysics, University of Hawaii, POST Building 701, 1680 East-West Road, Honolulu, Hawaii 96822, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Steven M. Stanley Department of Geology and Geophysics, University of Hawaii, POST Building 701, 1680 East-West Road, Honolulu, Hawaii 96822, USA Publisher: Geological Society of America Received: 31 May 2014 Revision Received: 17 Jun 2014 Accepted: 28 Jun 2014 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2014 Geological Society of America Geology (2014) 42 (9): 803–806. https://doi.org/10.1130/G35942.1 Article history Received: 31 May 2014 Revision Received: 17 Jun 2014 Accepted: 28 Jun 2014 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Steven M. Stanley; Evolutionary radiation of shallow-water Lucinidae (Bivalvia with endosymbionts) as a result of the rise of seagrasses and mangroves. Geology 2014;; 42 (9): 803–806. doi: https://doi.org/10.1130/G35942.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The Lucinidae (Bivalvia) originated in the Silurian Period with adaptations and life habits like those of modern members of this family. Nonetheless, the family remained at very low diversity until beginning a remarkable evolutionary radiation near the end of the Cretaceous Period, when seagrasses and mangroves arose. These marine angiosperms provided protective habitats in which the lucinids suddenly began to flourish, taking advantage of the dysaerobic sediments below roots and rhizomes to acquire sulfides for the endosymbiotic bacteria that they harbor in their gills and employ as food. Lucinids entered a symbiotic relationship with seagrasses, which benefit from the endosymbionts’ uptake of toxic sulfide, and it is in seagrass meadows that they have by far their highest diversity in shallow seas today. The terminal Cretaceous mass extinction had little impact on the taxonomic diversity of lucinids. Presumably they relied heavily on endosymbionts for nutrition at a time when marine pelagic productivity collapsed and many suspension-feeding taxa died out. The lucinids continued their radiation into the Cenozoic Era without interruption. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.