MV 6904, Channel Crop Quarry, Bear Gulch (Carboniferous of the United States)

Where: Fergus County, Montana (46.9° N, 109.0° W)

• Paleocoordinates: 1.8° S, 39.7° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bear Gulch Member (Heath Formation), Arnsbergian (327.0 - 323.7 Ma)

• "Namurian E2b" (E2 = Arnsbergian)

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, concretionary limestone

• "shallow, marine tropical bay" (Lund 1985)
• "rhythmically alternating sets of microturbidite beds and laminar beds" (Grogan and Lund 1997)

Size class: macrofossils

Preservation: adpression, concretion, soft parts

Collected by Melton

Collection methods: mechanical,

• Material is at the University of Montana

Primary reference: R. Lund and C. Poplin. 1997. The Rhadinichthyids (paleoniscoid actinopterygians) from the Bear Gulch limestone of Montana (USA, Lower Carboniferous). Journal of Vertebrate Paleontology 17(3):466-486 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116762: authorized by Matthew Clapham, entered by Matthew Clapham on 11.09.2011, edited by Sophie Fasey

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Osteichthyes
 Paphosisciformes - Paphosiscidae
Paphosiscus circulocaudus1
Paphosiscus circulocaudus1 Grogan and Lund 2015 ray-finned fish
UMVP 6096
 Fubarichthyiformes - Fubarichthyidae
Fubarichthys copiosus2
Fubarichthys copiosus2 Lowney 1980
UMVP 36875
 Palaeonisciformes - Rhadinichthyidae
Wendyichthys dicksoni n. gen.
Wendyichthys dicksoni n. gen. Lund and Poplin 1997
MV 6108
 Phanerosteonoidei - Phanerosteonidae
Phanerosteon phonax2
Phanerosteon phonax2 Lowney 1980
UMVP 6124
Actinopteri
 Neopterygii - Guildayichthyidae
Discoserra pectinodon3
Discoserra pectinodon3 Lund 2000
UMVP 2773
1Grogan and Lund 2015; 2Lowney 1980; 3Lund 2000