Where: Iowa (43.0° N, 91.7° W: paleocoordinates 19.7° S, 61.7° W)
• coordinate estimated from map
• basin-level geographic resolution
When: Amplexograptus manitoulinensis graptolite zone, Elgin Member (Scales Shale Formation), Maysvillian (450.2 - 449.6 Ma)
• member-level stratigraphic resolution
Environment/lithology: limestone
Size classes: macrofossils, microfossils
Primary reference: D. Goldman. 1995. Taxonomy, evolution, and biostratigraphy of the Orthograptus quadrimucronatus species group (Ordovician, Graptolithina). Journal of Paleontology 69(3):516-540 [S. Holland/S. Holland/S. Holland]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 184440: authorized by Pete Wagner, entered by Pete Wagner on 26.02.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Pterobranchia | |
Orthograptus eucharis Hall 1865 graptolite |