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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt
Proceedings of the Geologists' Association, Volume 122, No. 1, Year 2011
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Description
The Eocene rocks exposed in the Fayum Area, Egypt, are well known for their fossil vertebrates but in recent times the sharks and rays have been largely neglected. Extensive surface collecting, supplemented with bulk samples, has produced large collections from the Midawara, Gehannam, Birket Qarun and Qasr el-Sagha formations, spanning the Bartonian and Priabonian stages and from palaeoenvironments varying from open muddy shelf to very shallow estuarine systems. In total about 90 species of sharks and rays are recorded, many of them previously unrecognised, resulting in some of the most diverse fossil chondrichthyan assemblages known from the Tertiary. Teeth of these species suggest that they occupied a wide range of ecological niches from top predator to tiny benthic invertebrate feeder to planktivore. Many of the species are limited in their stratigraphical range and show potential to be used, at least locally, as biostratigraphical indicators for stratigraphically poorly constrained vertebrate sites elsewhere in North Africa. Distinctly different faunas from different sedimentary environments indicate a strong environmental control on the distribution of many species. © 2010.
Authors & Co-Authors
Underwood, Charlie J.
United Kingdom, London
Birkbeck, University of London
Ward, David J.
Unknown Affiliation
King, Chris
Unknown Affiliation
Antar, Sameh M.
Egypt, Cairo
Egyptian Environmental Affairs Agency
Zalmout, Iyad S.A.
United States, Ann Arbor
University of Michigan, Ann Arbor
Gingerich, Philip D.
United States, Ann Arbor
University of Michigan, Ann Arbor
Statistics
Citations: 89
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.pgeola.2010.09.004
ISSN:
00167878
Study Locations
Multi-countries
Egypt