MV 7113, Rose Canyon Pillar, Bear Gulch (Carboniferous of the United States)

Where: Fergus County, Montana (47.0° N, 109.0° W: paleocoordinates 5.4° N, 35.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bear Gulch Member (Heath Formation), Arnsbergian (326.4 - 318.1 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

Collection methods: mechanical,

• Material is at the University of Montana

Primary reference: C. Poplin and R. Lund. 2000. Two new deep-bodied palaeoniscoid actinopterygians from Bear Gulch (Montana, USA, Lower Carboniferous). Journal of Vertebrate Paleontology 20(3):428-449 [M. Clapham/M. Clapham/S. Fasey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116764: authorized by Matthew Clapham, entered by Matthew Clapham on 11.09.2011, edited by Sophie Fasey

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Acanthodiformes - Acanthodidae
Acanthodes lundi3 spiny fish
 Symmoriiformes - Falcatidae
Falcatus falcatus3 St. John and Worthen 1883 elasmobranch
 Chondrenchelyiformes - Chondrenchelyidae
Harpagofututor volsellorhinus3 Lund 1982 chimaera
Osteichthyes
  - Aesopichthyidae
Aesopichthys erinaceus Poplin and Lund 2000
MV 7791
  -
Kalops diophrys4 Poplin and Lund 2002
UMVP 8618
 Fubarichthyiformes - Fubarichthyidae
Yogoniscus gulo1 Lowney 1980
Fubarichthys copiosus1 Lowney 1980
UMVP 7803, 7806
Fubarichthys prolatus1 Lowney 1980
UMVP 6873
 Palaeonisciformes - Rhadinichthyidae
Wendyichthys dicksoni n. gen.2 Lund and Poplin 1997
MV 6147
Cyranorhis bergeraci n. gen.2 Lund and Poplin 1997
MV 8607