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On Arthraria antiquata Billings, 1872 and Its Relationship to Diplocraterion Torell, 1870 and Bifungites Desio, 1940
D. Fillion and R. K. Pickerili
Journal of Paleontology
Vol. 58, No. 3 (May, 1984), pp. 683-696
Published by: SEPM Society for Sedimentary Geology
Stable URL: http://www.jstor.org/stable/1304910
Page Count: 14
You can always find the topics here!Topics: Trace fossils, Billing, Geology, Fossils, Paleontology, Shales, Sandstones, Geological surveys, Stratigraphy, Synonyms
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The poorly defined trace fossil Arthraria antiquata Billings, 1872 is redescribed from its type location, Bell Island, eastern Newfoundland. Historically, the monospecific A. antiquata has been confused with and even placed into synonymy with the related ichnogenera Bifungites Desio, 1940 and Diplocraterion Torell, 1870. Examination of topotype and other material from Bell Island suggests that A. antiquata is a distinctive trace fossil lacking vertical components typical of Bifungites and Diplocraterion. It is suggested in the case of essentially dumb-bell shaped trace fossils preserved in semirelief on lower surfaces as positive casts that: Bifungites be employed for those structures with associated vertical tubes but without spreite, Diplocraterion be employed for those structures with associated vertical tubes and spreite and Arthraria be employed for those structures with no vertical tubes or associated spreite.
Journal of Paleontology © 1984 SEPM Society for Sedimentary Geology