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 (452.0 - 449.5 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

Graptolithina
 Diplograptoidea - Diplograptidae
Orthograptus eucharis Hall 1865 diplograptoid
Orthograptus quadrimucronatus Hall 1865 diplograptoid
Rectograptus peosta diplograptoid
 Bireclinata -
Climacograptus putillus Hall 1865 climacograptid