Where: Ripley County, Indiana (39.0° N, 85.0° W: paleocoordinates 27.8° S, 51.9° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Upper section Member (Osgood Shale Formation), Silurian (443.8 - 419.2 Ma)
• Listed as Niagaran, Osgood
Environment/lithology: deep subtidal shelf; poorly lithified, calcareous shale and lithified, coarse-grained, gray, argillaceous limestone
Size classes: macrofossils, mesofossils
Primary reference: T.G. Perry and D.E. Hattin. 1960. Osgood (Niagaran) bryozoans from the type area. Journal of Paleontology 34:85-90 [P. Novack-Gottshall/P. Hearn]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 75266: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 01.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Pisocrinus gemmiformis Sea lily | |
Blastoidea | |
Stephanocrinus elongatus blastoid
Stephanocrinus gemmiformis blastoid | |
Rhombifera | |
Strophomenata | |
"Plectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis, Plectodonta elegantula
"Plectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis Wahlenberg 1818 | |
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda Hall 1852 | |
Leptaena rhomboidalis Wahlenberg 1818 | |
Chileata | |
| |
Rhynchonellata | |
"Barrandella fornicata" = Pentamerus (Barrandella)
"Barrandella fornicata" = Pentamerus (Barrandella) | |
"Cyrtia exporrecta" = Cyrtia exporrectus, Eospirifer eudora, Eospirifer foggi, Eospirifer niagarensis, Eospirifer radiatus
"Cyrtia exporrecta" = Cyrtia exporrectus Wahlenberg 1818
Eospirifer radiatus Sowerby 1834 | |
Atrypina disparilis Hall 1852 | |
Atrypa reticularis Linnaeus 1758
"Atrypa nodostriata" = Eospinatrypa nodostriata Hall 1852 | |
Rhynchotreta americana Hall 1879 | |
"Parmorthis waldronensis" = Resserella
"Parmorthis waldronensis" = Resserella | |
Dolerorthis interplicata Foerste 1909
Dolerorthis flabellites Foerste 1889 | |
Stenolaemata | |
Ceramopora imbricata Hall 1852 | |
Hennigopora apta Perry et al. 1960 | |
Hallopora elegantula Hall 1851 | |
Trematopora sp. Hall 1852 | |
Cephalopoda | |
Gastropoda | |
Loxonema sp. Phillips 1841 snail | |
"Platyceras niagarense" = Platyceras niagarensis, "Platyostoma niagarense" = Platyostoma niagarensis, Platyostoma brownsportense
"Platyceras niagarense" = Platyceras niagarensis Hall 1852 snail
"Platyostoma niagarense" = Platyostoma niagarensis Hall 1852 snail
Platyostoma brownsportense Foerste 1903 snail | |
Trilobita | |
Bumastus ioxus Hall 1868 trilobite | |
Calymene celebra Raymond 1916 trilobite | |
Dalmanites limulurus trilobite | |
Anthozoa | |
Ditoecholasma acutiannulatum horn coral | |
Enterolasma caliculum horn coral | |
Duncanella borealis horn coral | |
Favosites cristatus tabulate coral
Favosites discoideus tabulate coral
Favosites forbesi tabulate coral | |
Striatopora flexuosa Hall 1852 tabulate coral |