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Acritarchs from the Lower Cambrian Murray Shale, Chilhowee Group, of Tennessee, U.S.A.

Gordon D. Wood and John A. Clendening
Palynology
Vol. 6 (1982), pp. 255-265
Stable URL: http://www.jstor.org/stable/3687343
Page Count: 11
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Acritarchs from the Lower Cambrian Murray Shale, Chilhowee Group, of Tennessee, U.S.A.
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Abstract

Twelve acritarchs (organic-walled microphytoplankton incertae sedis) including Comasphaeridium caesariatum n. sp. and Medousapalla choanoklosma n. gen. et sp., are described and illustrated. This is the first assemblage to be reported from the Lower Cambrian of the United States. These acritarchs were recovered from the Murray Shale (Chilhowee Group), of Tennessee, a well-dated stratigraphic unit which also yields the oldest known skeletal fossils from the eastern United States.

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