PBDB Collection

Scales Shale, Elgin Member Ostracodes of Iowa (Ordovician to of the United States)

Where: Iowa (42.0° N, 94.0° W: paleocoordinates 19.4° S, 65.5° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Elgin Member (Scales Shale Formation), Edenian to Edenian (451.0 - 449.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: limestone

• Environmental call by T. Hanson

• Limestone, occasional shale partings. Lithology from C. O. Leverson, A. J. Gerk, R. E. Sloan, & L. A. Bisagno. General section of the Middle and Late Ordovician strata of Northeastern Iowa, Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35, p.25-39. Edited by R. E. Sloan.

Size class: microfossils

Collection methods: chemical,

Primary reference: F. M. Swain. 1987. Middle and Upper Ordovician Ostracoda of Minnesota and Iowa. In R. E. Sloan (ed.), Minnesota Geological Survey Report of Investigations 35:99-101 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 23235: authorized by Steven Holland, entered by Tori Hanson on 10.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Ellesmeria scobeyi, Laddella insueta Ellesmeria scobeyi Laddella insueta
Ostracoda
Podocopida - Bairdiocyprididae	"Macrocyproides clermontensis" = Bairdiocypridella "Macrocyproides clermontensis" = Bairdiocypridella ostracod
Podocopida - Bythocyprididae	Bythocypris furnishi Bythocypris furnishi ostracod "Bythocypris" furnishi
Podocopida - Bairdiidae	Krausella inaequalis Krausella inaequalis ostracod
Palaeocopida - Eridoconchidae	Americoncha marginata Americoncha marginata ostracod
Palaeocopida - Cryptophyllidae	Milleratia cincinnatiensis Milleratia cincinnatiensis ostracod
Palaeocopida - Kloedenellidae	Eukloedenella richmondensis Eukloedenella richmondensis ostracod
Palaeocopida - Leperditellidae	Leperditella fryei, Punctaparchites splendens Leperditella fryei ostracod Punctaparchites splendens ostracod
Palaeocopida - Beyrichiidae	Beyrichia irregularis Beyrichia irregularis ostracod "Beyrichia" irregularis
Palaeocopida - Hollinidae	Ctenobolbina emaciata, Ctenobolbina maquoketensis Ctenobolbina emaciata ostracod Ctenobolbina maquoketensis ostracod
Leperditellocopida - Aparchitidae	Aparchites barbatus Aparchites barbatus ostracod
Leperditellocopida - Primitiidae	Primitia spinata, Primitia gibbera Primitia spinata ostracod Primitia gibbera ostracod
Leperditellocopida - Schmidtellidae	Paraschmidtella irregularis, Schmidtella lacunosa Paraschmidtella irregularis ostracod Schmidtella lacunosa ostracod
Hollinocopida - Euprimitiidae	Primitiella bellevuensis, Primitiella carlei, Primitiella milleri Primitiella bellevuensis ostracod Primitiella carlei ostracod Primitiella milleri ostracod
Beyrichicopida - Bolliidae	Bollia regularis, Bollia ruthae, Ulrichia saccula Bollia regularis ostracod "Bollia" regularis Bollia ruthae ostracod Ulrichia saccula ostracod
Beyrichicopida - Soanellidae	Zygobolboides calvini, Zygobolboides grafensis, Zygobolboides iowensis Zygobolboides calvini ostracod Zygobolboides grafensis ostracod Zygobolboides iowensis ostracod
Macrocypris kayi
-	Macrocypris kayi Macrocypris kayi Spivey 1939