Bichler Quarry, Groos (Ordovician of the United States)
Where: Michigan (45.8° N, 87.1° W: paleocoordinates 19.9° S, 57.1° W)
When: Amplexograptus manitoulinensis graptolite zone, Haymeadow Creek Shale Formation, Maysvillian (450.2 - 449.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shale
Size class: macrofossils
Preservation: cast
Reposited in the UMMP
Primary reference: D. Goldman and S. M. Bergström. 1997. Late Ordovician graptolites from the North American midcontinent. Palaeontology 40(4):965-1010 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 184443: authorized by Pete Wagner, entered by Pete Wagner on 27.02.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Pterobranchia | |
|
Climacograptus putillus Hall 1865 climacograptid | |
|
Orthograptus eucharis Hall 1865 graptolite
Orthograptus quadrimucronatus Hall 1865 graptolite
Rectograptus peosta Hall 1861 graptolite | |