Sample 7, Waynesville Fm., Ripley Co., IN (Ordovician of the United States)

Where: Ripley County, Indiana (41.0° N, 86.7° W: paleocoordinates 23.4° S, 58.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; shelly/skeletal, gray, argillaceous shale and limestone

• soft gray shale and gray to blue clay interbedded with gray to purple, argillaceous limestone. the shales and the limestones are fossilliferous, and the latter commonly approaches a coquina. in general, the limestone layers range from 2 to 8 inches in thickness, and the shale and clay beds from 0.5 to 3 feet.

Preservation: replaced with calcite

Collection methods: Collection methods: The creek bed at the base of the section was used as a datum plane and the section was divided into 15 five-foot zones and an upper 3 ft. zone, with a collection taken from each zone.

Primary reference: D. E. Von Tress. 1954. Some Waynesville and Liberty Bryozoa from Versailles, Ripley County, Indiana. 1-62 [A. Miller/K. Layou/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6906: authorized by Arnold Miller, entered by Karen Layou on 10.04.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Stenolaemata
 Trepostomida - Monticuliporidae
Prasopora hospitalis, Homotrypa flabellaris
Homotrypa flabellaris
? in presence/absence field
 Trepostomida - Amplexoporidae
Rhombotrypa quadrata
Rhombotrypa quadrata Rominger 1866
 Trepostomata - Halloporidae
Hallopora subnodosa