MV 7106, Supercrop Quarry, Bear Gulch (Carboniferous of the United States)

Where: Fergus County, Montana (47.0° N, 108.9° W: paleocoordinates 5.4° N, 35.1° 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: R. Lund. 1980. Viviparity and intrauterine feeding in a new Holocephalan fish from the Lower Carboniferous of Montana. Science 209:697-699 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116654: authorized by Matthew Clapham, entered by Matthew Clapham on 10.09.2011, edited by John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

Enoplea
 Chromadorida - Nemavermidae
Nemavermes mackeei13 Schram 1973
UM 5554, 5562, 5564, 5569, 5570, 5875
Polychaeta
 Phyllodocida - Nephtyidae
Astreptoscolex anasillosus13 Thompson 1979 scale worm
UM 5872, 5874, 5876
 Phyllodocida - Goniadidae
Carbosesostris megaliphagon n. gen. n. sp.13
Carbosesostris megaliphagon n. gen. n. sp.13 Schram 1979 scale worm
UM 5542, 5871, 6355(x3)
 Eunicida - Lumbrinereidae
Phiops aciculorum n. gen. n. sp.13
Phiops aciculorum n. gen. n. sp.13 Schram 1979
UM 5543, 5873
  -
Ramesses magnus n. gen. n. sp.13, Soris labiosus n. gen. n. sp.13
Ramesses magnus n. gen. n. sp.13 Schram 1979
UM 5550-5553, 5560, 5877
Soris labiosus n. gen. n. sp.13 Schram 1979
UM 5548, 5549
Petromyzontida
 Petromyzontiformes - Hardistiellidae
Hardistiella montanensis n. gen. n. sp.3
Hardistiella montanensis n. gen. n. sp.3 Janvier and Lund 1983 lamprey
Chondrichthyes
 Symmoriiformes - Falcatidae
Falcatus falcatus5 St. John and Worthen 1883 elasmobranch
MV 3334, 4750, 4766, 4793, 5352, 5385-93, 5444-8, 5450-1, 6159, 6196-8, 6933-4, 6949-6, 7686-94
Damocles serratus6 Lund 1986 elasmobranch
MV 5449, 6158, 6957, 7685
 Iniopterygia - Iniopterygidae
Papilionichthys stahlae2 Grogan and Lund 2009 cartilaginous fish
MV 7680, 7682
Rainerichthys zangerli2 Grogan and Lund 2009 cartilaginous fish
MV 6174, 7681
  -
Delphyodontos dacriformes n. gen. n. sp. Lund 1980 chimaera
 Chondrenchelyiformes - Chondrenchelyidae
Harpagofututor volsellorhinus4 Lund 1982 chimaera
MV 3766, 3985, 5553, 5554, 6186, 6205, 6945-8
 Debeeriiformes - Debeeriidae
Debeerius ellefseni1 Grogan and Lund 2000 chimaera
MV 6165
 Petalodontiformes - Janassidae
Janassa clarki n. sp.8 Lund 1989 chimaera
 Petalodontiformes - Pristodontidae
Siksika ottae n. gen. n. sp.8
Siksika ottae n. gen. n. sp.8 Lund 1989 chimaera
 Petalodontiformes - Belantseidae
Belantsea montana n. gen. n. sp.7
Belantsea montana n. gen. n. sp.7 Lund 1989 chimaera
MV 7698
Osteichthyes
  -
Lineagruan judithi11 Mickle et al. 2009
MV 3630, 6132-3, 6372, 6936, 7657
Lineagruan snowyi11 Mickle et al. 2009
MV 6119, 7010
Paratarrasius hibbardi n. gen. n. sp.9 Lund and Melton 1982
MV 3562, 3600, 5557, 6931
Actinopteri
 Palaeonisciformes - Rhadinichthyidae
Cyranorhis bergeraci n. gen.10 Lund and Poplin 1997
MV 3962, 6125, 6921, 7656
Wendyichthys lautreci n. sp.10 Lund and Poplin 1997
Wendyichthys dicksoni n. gen. n. sp.10 Lund and Poplin 1997
MV 3857, 3615, 3628, 3828, 3831, 3843, 4740, 6870, 6109-15, 6368, 6869-70, 6906-6914, 6925, 6929-30, 6975-7, 6979-6985, 7401, 7647-7651, 7653, 7655, 7773, 7774, 7776, 7933
Osteichthyes
  - Aesopichthyidae
Aesopichthys erinaceus12 Poplin and Lund 2000
MV 6373, 7015, 7668
  -
Beagiascus pulcherrimus11 Mickle et al. 2009
MV 3801, 3806
Deuteronectanebos papillorum
  -
Deuteronectanebos papillorum n. gen. n. sp.13 Schram 1979
UM 5545, 5544, 5546, 5561, 5819
Archisymplectes rhothon
  -
Archisymplectes rhothon13 Schram 1973
UM 5546