Where: Tennessee (36.0° N, 88.0° W: paleocoordinates 36.6° S, 48.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Birdsong Shale Member (Ross Formation), Gedinnine (416.0 - 412.3 Ma)
• Sampled zone only 2.5 feet thick, but bluff 160 yards long (approx. 9-11.5 feet from top of formation, of which 22.5 feet are exposed). Listed as Gedinnian
• group of beds-level stratigraphic resolution
Environment/lithology: offshore shelf; poorly lithified, shelly/skeletal, blue, argillaceous, calcareous shale and lithified, calcareous wackestone
Size classes: macrofossils, mesofossils
Primary reference: C.O. Dunbar. 1919. Stratigraphy and correlation of the Devonian of western Tennessee. Geological Survey Tennessee, Bulletin 21:1-127 [G. Webster/G. Webster]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 75628: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 23.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Favosites conicus tabulate coral | |
Crinoidea | |
Phimocrinus sp. n. sp.
Phimocrinus sp. n. sp. Schultze 1867 Sea lily | |
Strophomenata | |
Leptaenisca concava Hall 1857 | |
Leptaena rhomboidalis Wahlenberg 1818 | |
Rhynchonellata | |
Rhipidomella emarginata, "Rhipidomella oblata" = Rhipidomelloides oblata
"Rhipidomella oblata" = Rhipidomelloides oblata Hall 1857 | |
"Bilobites varicus" = Dicoelosia varica
"Bilobites varicus" = Dicoelosia varica Conrad 1842 | |
"Rhynchospira formosa" = Rhynchospirina
"Rhynchospira formosa" = Rhynchospirina | |
Atrypina imbricata Hall 1857 | |
Trilobita | |
"Phacops logani" = Paciphacops logani
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