Where: Seneca County County, New York (42.6° N, 76.7° W: paleocoordinates 36.4° S, 24.6° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Geneseo Shale Formation (Genesee Group), Early/Lower Frasnian (383.7 - 382.4 Ma)
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
Preservation: original calcite
Collection methods: bulk, quarrying, surface (in situ),
Primary reference: J. B. Thompson and C.R. Newton. 1987. Ecological Reinterpretation of the Dysaerobic Leiorhynchus Fauna: Upper Devonian Geneseo Black Shale, Central New York. Palaios 2(3):274-281 [L. Ivany/P. Wall]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 76098: authorized by Linda Ivany, entered by Patrick Wall on 13.11.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Lingulata | |
|
Lingula spatulata Vanuxem 1842 | |
| Rhynchonellata | |