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Middle Devonian Brachiopods of Southeastern Wisconsin

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/5106

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Title: Middle Devonian Brachiopods of Southeastern Wisconsin
Creators: Griesemer, Allan David
Issue Date: 1965-09
Citation: The Ohio Journal of Science. v65 n5 (September, 1965), 241-295
Abstract: Twenty-nine genera, forty-eight species, and five subspecies of brachiopods are recognized from the Middle Devonian formations of southeastern Wisconsin. Two species and four subspecies are new. The presence of Trigonoglossa truncata in the Wisconsin section seems to substantiate the extension of the range of this Pennsylvanian genus into the Middle Devonian as suggested by Girty, and the existence of well-preserved Lingulidiscina in the Milwaukee Formation supports the validity of this genus, previously questioned by Girty. Correlation of the Lake Church formation is obscure because of incomplete collections from localities now inaccessible. However, distinctive Milwaukee Formation species show affinities with Upper Middle Devonian Cedar Valley brachiopods of Iowa, indicating the possibility of a connection between these areas during late Hamilton time.
URI: http://hdl.handle.net/1811/5106
ISSN: 0030-0950
Rights: Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given.
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