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dc.contributor.authorBosak, Tanja
dc.contributor.authorLahr, Daniel J. G.
dc.contributor.authorPruss, Sara B.
dc.contributor.authorMacdonald, Francis Alexander
dc.contributor.authorGooday, Andrew J.
dc.contributor.authorDalton, Lilly
dc.contributor.authorMatys, Emily D.
dc.date.accessioned2017-08-04T15:33:57Z
dc.date.issued2011
dc.identifierQuick submit: 2014-02-22T21:32:00-05:00
dc.identifier.citationBosak, T., D. J. G. Lahr, S. B. Pruss, F. A. Macdonald, A. J. Gooday, L. Dalton, and E. D. Matys. 2011. “Possible Early Foraminiferans in Post-Sturtian (716-635 Ma) Cap Carbonates.” Geology 40 (1) (November 14): 67–70. doi:10.1130/g32535.1.en_US
dc.identifier.issn0091-7613en_US
dc.identifier.issn1943-2682en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33717505
dc.description.abstractForaminifera are an ecologically important group of modern heterotrophic amoeboid eukaryotes whose naked and testate ancestors are thought to have evolved ∼1 Ga ago. However, the single-chambered agglutinated tests of these protists appear in the fossil record only after ca. 580 Ma, coinciding with the appearance of macroscopic and mineralized animals. Here we report the discovery of small, slender tubular microfossils in the Sturtian (ca. 716–635 Ma) cap carbonate of the Rasthof Formation in Namibia. The tubes are 200–1300 μm long and 20–70 μm wide, and preserve apertures and variably wide lumens, folds, constrictions, and ridges. Their sometimes flexible walls are composed of carbonaceous material and detrital minerals. This combination of morphologic and compositional characters is also present in some species of modern single-chambered agglutinated tubular foraminiferans, and is not found in other agglutinated eukaryotes. The preservation of possible early Foraminifera in the carbonate rocks deposited in the immediate aftermath of Sturtian low-latitude glaciation indicates that various morphologically modern protists thrived in microbially dominated ecosystems, and contributed to the cycling of carbon in Neoproterozoic oceans much before the rise of complex animals.en_US
dc.description.sponsorshipEarth and Planetary Sciencesen_US
dc.language.isoen_USen_US
dc.publisherGeological Society of Americaen_US
dc.relation.isversionofdoi:10.1130/g32535.1en_US
dc.relation.hasversionhttp://projects.iq.harvard.edu/files/fmacdonald/files/2012_possible_early_foraminiferans.pdfen_US
dash.licenseMETA_ONLY
dc.titlePossible early foraminiferans in post-Sturtian (716-635 Ma) cap carbonatesen_US
dc.typeJournal Articleen_US
dc.date.updated2014-02-23T02:33:39Z
dc.description.versionVersion of Recorden_US
dc.rights.holderTanja Bosak, Daniel J.G. Lahr, Sara B. Pruss, Francis A. Macdonald, Andrew J. Gooday, Lilly Dalton, and Emily D. Matys
dc.relation.journalGeologyen_US
dash.depositing.authorMacdonald, Francis Alexander
dash.embargo.until10000-01-01
dc.identifier.doi10.1130/g32535.1*
workflow.legacycommentsFAR 2013 Macdonald emailed 2016-05-04 AD Macdonald emailed 2017-02-24 MM meta.darken_US
dash.contributor.affiliatedMacdonald, Francis


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