Unit 1, Keefer Sandstone, North Rose Hill Section (Silurian to of the United States)
Where: Maryland (39.7° N, 78.8° W: paleocoordinates 29.1° S, 47.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Keefer Sandstone Formation (Clinton Group), Llandovery to Llandovery (443.4 - 423.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: foreshore; lithified sandstone
• Massive sandstone; upper 2 feet very calcareous, lower 1 foot iron stained and containing Stegerhynchus neglectum, Liocalymene clintoni, Stropheodonta, and crinoid stems; iron ore at very top.
Primary reference: H. P. Woodward. 1941. Silurian System of West Virginia. West Virginia Geological Survey 14:1-326 [P. Wagner/K. Koverman/K. Koverman]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 41009: authorized by Pete Wagner, entered by Kimberly Koverman on 05.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Rhynchonellata | |
Strophomenata | |
"Stropheodonta sp." = Strophomena (Strophodonta)
"Stropheodonta sp." = Strophomena (Strophodonta) Hall 1852 | |
Trilobita | |
Liocalymene clintoni trilobite |