Also known as Tyrone A section. Milner

Where: Woodford County, Kentucky (38.0° N, 84.8° W: paleocoordinates 27.2° S, 63.3° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Plectodina tenuis conodont zone, Grier Limestone Member (Lexington Limestone Formation), Shermanian (457.3 - 449.6 Ma)

• "Grier Limestone Member, Lexington Limestone [...] 148 ft above the base of the Curdsville Limestone Member, Lexington Limestone."

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; coarse-grained, nodular, shelly/skeletal limestone and fine-grained, nodular, shelly/skeletal, argillaceous limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk, acetic,

• " [...] specimens were obtained from bulk rock collections (36,000 pounds (lbs) of limestone) made by USGS field parties in the 1960's and 1970's." This statement not only applies to the Tyrone A locality. For further details on collection methods see p. P22 in the primary reference

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 87818: authorized by Björn Kröger, entered by Torsten Liebrecht on 25.03.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)