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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
A Reinterpretation of Astropolithon Hindii Dawson 1878
Ronald K. Pickerill, Ian M. Harris
ABSTRACT
Astropolithon hindii was first described by Dawson (1878) from the Meguma Group of Nova Scotia and interpreted as a biogenic sedimentary structure. Subsequent workers in ichnology have generally accepted this interpretation and have utilized Astropolithon as a distinctive Cambrian ichnofossil and furthermore have even erected new ichnospecies. It is proposed here that A. hindii is a physical rather than biogenic sedimentary structure, merely representing one variation in a morphologically variable assemblage of sand volcanoes produced as a result of fluidization along discrete flow paths of rapidly deposited turbiditic or fluidized sheet sands. As such, A. hindii should be regarded as a pseudofossil and other biogenic structures assigned to it should necess rily be incorporatred into a new ichnogenus.
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