Paraparchites mazonensis n. sp. (Ostracoda) from Middle Pennsylvanian ironstone concretions of Illinois
New ostracode species
Fieldiana. Geology ; v. 37, no. 2
Publication (Field Museum of Natural History) ; 1263
Sohn, I. G. (Israel Gregory), 1911-2000
Field Museum of Natural History.
Chicago :Field Museum of Natural History,1977.
"June 29, 1977."
A new ostracode species, Paraparchites mazonensis, is described from Mazon Creek concretions in the Middle Pennsylvanian Francis Creek Shale of Savage, 1927 (Desmoinesian = Westphalian C) in northeastern Illinois. The occurrence of this genus suggests a brackish water environment in the areas of formation of the ostracode-bearing ironstone concretions.
Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-).
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