Sayers Farm at Bull Fork, near Hamburg (Ordovician of the United States)

Also known as collection IND-4, Salt Creek

Where: Franklin County, Indiana (39.4° N, 85.3° W: paleocoordinates 25.2° S, 58.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Saluda Formation, Richmondian (449.6 - 445.5 Ma)

• Nautiloid specimens come from a "'Concrete layer' just 15 ft above the Tetradium biostrome"

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; dolomitic lime mudstone

• "Hatfield (1968) described the Saluda Formation as being deposited under very shallow-water, possibly hypersaline, lagoonal conditions that developed behind an initially northward-advancing and then southward-retreating coral-sponge bank."
• Saluda Fm. general description: "sparsely fossiliferous dolomitic limestone and calcitic dolostone"

Size class: macrofossils

Preservation: cast, recrystallized, replaced with calcite

Collection methods: MU = Limper Museum of Geology at Miami University

Primary reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126 [S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87932: authorized by Björn Kröger, entered by Torsten Liebrecht on 29.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Oncocerida - Diestoceratidae
Diestoceras shideleri, Diestoceras indianense
Diestoceras shideleri Foerste 1924
MU 430T
Diestoceras indianense Miller and Faber 1894
MU 431T, 432T
 Oncocerida - Oncoceratidae
Beloitoceras bucheri
Beloitoceras bucheri Flower 1946
MU 433T, 29865
 Orthocerida - Proteoceratidae
Gorbyoceras gorbyi
Gorbyoceras gorbyi Miller 1894
MU 402T, 16050