Silica Formation Unit 17 (Devonian of the United States)
Where: Ohio (41.7° N, 83.7° W: paleocoordinates 36.4° S, 31.0° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Silica Formation, Givetian (387.7 - 382.7 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; gray, argillaceous limestone
• Overall sequence: Bioclastic limestone; argillaceous limestone; shale. This unit: "limestone, massive and argillaceous at base, becomign very argillaceous at top, dark-gray"
Primary reference: R. V. Kesling and R. B. Chilman. 1975. Strata and megafossils of the Middle Devonian Silica Formation. University of Michigan Papers on Paleontology 8:1-408 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 38468: authorized by Michael Foote, entered by Michael Foote on 21.04.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Rhynchonellata | |
Leiorhynchus "sp. A" Hall 1860 | |
Mucrospirifer mucronatus Conrad 1841 | |
"Ambocoelia" "umbonata" Conrad 1842 | |
Strophomenata | |
Stenolaemata | |