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Drevotella proteana, a new genus and species of colonial hydrozoan, is described from the Middle Pennsylvanian Francis Creek Shale of the Mazon Creek area of northeastern Illinois. It is represented by numerous specimens preserved in iron-stone concretions in which the large, irregularly branched colonies appear as flattened impressions visible by virtue of color contrast.
Publish Date
1972
Publisher
Field Museum of Natural History
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- Created April 1, 2008
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October 4, 2020 | Edited by MARC Bot | import existing book |
April 14, 2010 | Edited by Open Library Bot | Linked existing covers to the edition. |
October 15, 2009 | Edited by WorkBot | add edition to work page |
April 1, 2008 | Created by an anonymous user | Imported from Internet Archive item record |