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

Where: Iowa (42.0° N, 94.0° W: paleocoordinates 19.2° S, 63.7° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Clermont Member (Scales Shale Formation), Maysvillian (450.2 - 449.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: green shale

• Environmental call by T. Hanson.
• Shale, bluish-green. 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 23236: 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
Macrocypris kayi
  -
Macrocypris kayi
Macrocypris kayi Spivey 1939
Ostracoda
 Palaeocopida - Eridoconchidae
Americoncha marginata
 Palaeocopida - Cryptophyllidae
Milleratia cincinnattiensis
 Palaeocopida - Hollinidae
Ctenobolbina emaciata, Ctenobolbina maquoketensis
 Palaeocopida - Leperditellidae
Punctaparchites splendens, Leperditella fryei
 Palaeocopida - Beyrichiidae
Beyrichia irregularis
Beyrichia irregularis ostracod
"Beyrichia" irregularis
 Podocopida - Bythocyprididae
Bythocypris furnishi
Bythocypris furnishi ostracod
"Bythocypris" furnishi
 Podocopida - Bairdiidae
Krausella inaequalis
 Podocopida - Bairdiocyprididae
"Macrocyproides clermontensis" = Bairdiocypridella
"Macrocyproides clermontensis" = Bairdiocypridella ostracod
 Hollinocopida - Euprimitiidae
Primitiella bellevuensis, Primitiella carlei, Primitiella milleri
 Leperditellocopida - Primitiidae
Primitia gibbera
 Beyrichicopida - Bolliidae
Bollia ruthae
Bollia ruthae ostracod
 Beyrichicopida - Soanellidae
Zygobolboides calvini, Zygobolboides grafensis, Zygobolboides iowensis, Zygobolboides thomasi