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Abstract Detail

Paleobotanical Section

Locklear, Jared [1], Mickle, James [2].

Vitis species of the Pleistocene age Martin Marietta Locality from the Atlantic Coastal Plain, USA.

The Martin Marietta locality recently discovered in an open aggregate mine pit near Wilmington, North Carolina, USA (34° 22. 368’ N, 77 ° 50.356’ W). This site has been dated to the Pleistocene Sangamon Interglacial based primarily on palynological analysis and has produced abundant macrofossil remains that show a wide range of diversity compared to other Pleistocene sites. Among this diversity, Vitis seeds have been identified and described. Vitis is a staple of the local flora of southeastern North Carolina. The evolutionary history of Vitaceae is of interest due to geographic and ecological ranges, notwithstanding human food industrial importance. Comparison to extant and extinct species of the Vitaceae was conducted, with similarity most prevalent with modern Vitis located in the local extant flora.  Seed length, ventral infold length and width, chalaza width, and basal groove angle were the main characters used to determine species.  Taxa identified include Vitis subspecies Vitis, and Vitis rotundifolia.  This represents one of the few records of Vitis in the Pleistocene, North Carolina, and the Sangamon Interglacial. The identification of Vitis seeds from the Martin Marietta locality adds to our knowledge about, and provides insight into the phylogenetic and ecological significance of grape species across the southeastern United States during the Pleistocene.

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1 - North Carolina State University, Dept Of Plant and Microbial Biology, Box 7612, Raleigh, NC, 27695-7612, USA
2 - North Carolina State University, Department of Plant and Microbial Biology, Campus Box 7612, 2115 Gardner Hall, Raleigh, NC, 27695-7612, USA

Atlantic Coastal Plain

Presentation Type: Poster:Posters for Sections
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PPB003
Abstract ID:440
Candidate for Awards:None

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