Brachiopods of Slate Quarry Mbr., Lithograph City Fm., Johnson Co., Iowa (Devonian of the United States)

Also known as Ladogioides fauna

Where: Johnson County, Iowa (41.7° N, 91.5° W: paleocoordinates 34.3° S, 37.4° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Slate Quarry Member (Lithograph City Formation), Late/Upper Givetian (388.1 - 383.7 Ma)

• Late Givetian Strophodonta iowensis zone.

• member-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal grainstone and shelly/skeletal packstone

• Includes channel-fill deposits of transgressive phase.
• Lithologies include skeletal grainstones and skeletal packstones.

Primary reference: J. Day. 1988. The brachiopod succession of the Late Givetian-Frasnian of Iowa. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 303-325 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35489: authorized by Michael Foote, entered by Michael Foote on 17.12.2003, edited by Alycia Stigall

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthotetida - Areostrophiidae
 Strophomenida - Strophodontidae
 Athyridida - Retziidae
 Athyridida - Athyrididae
 Terebratulida - Cranaenidae
 Spiriferinida - Cyrtinidae
 Spiriferida - Spinocyrtiidae
 Spiriferida - Adolfiidae
 Atrypida - Atrypidae
 Rhynchonellida - Yunnanellidae
 Orthida - Schizophoriidae