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Redefinition of the Meramecian/Chesterian boundary (Mississippian)
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1987
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Sedimentary RecordHistorical GeographyEngineeringGeomorphologySedimentary GeologyEarth ScienceRegional GeologySocial SciencesMeramecian/chesterian Boundary OutsideGeological DataMarine GeologyGeographyGeologyTectonicsStructural GeologyMeramecian/chesterian BoundaryExploration GeologyEconomic GeologyEarth Sciences
Research Article| July 01, 1987 Redefinition of the Meramecian/Chesterian boundary (Mississippian) Christopher G. Maples; Christopher G. Maples 1Department of Earth Sciences, Clemson University, Clemson, South Carolina 29631-1908 Search for other works by this author on: GSW Google Scholar Johnny A. Waters Johnny A. Waters 2Department of Geology, West Georgia College, Carrollton, Georgia 30118 Search for other works by this author on: GSW Google Scholar Author and Article Information Christopher G. Maples 1Department of Earth Sciences, Clemson University, Clemson, South Carolina 29631-1908 Johnny A. Waters 2Department of Geology, West Georgia College, Carrollton, Georgia 30118 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1987) 15 (7): 647–651. https://doi.org/10.1130/0091-7613(1987)15<647:ROTMBM>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Christopher G. Maples, Johnny A. Waters; Redefinition of the Meramecian/Chesterian boundary (Mississippian). Geology 1987;; 15 (7): 647–651. doi: https://doi.org/10.1130/0091-7613(1987)15<647:ROTMBM>2.0.CO;2 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 Meramecian/Chesterian (Mississippian) boundary in the type area is currently defined as the highest occurrence of the crinoid Platycrinites penicillus and the lowest occurrence of the crinoid genera Agassizocrinus and Talarocrinus. Because these taxa have not been reported outside eastern North America, attempts have been made to use conodonts and Foraminifera to extend the Meramecian/Chesterian boundary outside the type area. Unfortunately, changes in conodont and foraminiferal assemblages do not coincide with the currently defined Meramecian/Chesterian boundary, and use of these fossil groups does not allow exact placement of the boundary outside of eastern North America.We suggest that the Meramecian/Chesterian boundary be redefined as the boundary between Foraminiferal Zones 15 and 16i of the Mamet scheme, irrespective of the occurrence of Platycrinites penicillus. This change in definition places the Ste. Genevieve Limestone (Genevievian Stage) in the lowermost part of the Chesterian Series, with which it is biotically and sedimentologically more allied than with the underlying St. Louis Limestone. This change provides a sound biostratigraphic base for correlating the Meramecian/Chesterian boundary outside of the type area. Foraminifera, conodonts, brachiopods, and corals all show significant changes at or slightly below the St. Louis/Ste. Genevieve contact rather than at the Genevievian/Chesterian contact. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.