Where: Seneca County County, New York (42.6° N, 76.7° W: paleocoordinates 37.1° S, 24.4° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Geneseo Shale Formation (Genesee Group), Givetian (387.7 - 382.7 Ma)
• 99 cm above start of interval
• bed-level stratigraphic resolution
Environment/lithology: prodelta; pyritic, gray, silty shale
•to be a dark gray pyritic shale. The shale is composed
•roughly of 60% clay and bituminous matter, 20% quartz silt,
•15% calcite, and 5% pyrite. It is distinctly laminated, with the
•paler laminae being siltier and the darker laminae richer in clay
•and organic matter. Silt banding is superimposed on the distinct
•laminae. Thin silt beds range from regular and continuous to
•discontinuous, thin lenses.
Size class: macrofossils
Primary reference: D. L. Boyer and M.L. Droser. 2007. Devonian monspecific assemblages: new insights into the ecology of reduced-oxygen depositional settings. Lethaia 40(4):321-333 [L. Ivany/P. Wall]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 76839: authorized by Linda Ivany, entered by Patrick Wall on 03.12.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
| Rhynchonellata | |