PBDB Collection

MV 7632, Blacktail Pillar, Bear Gulch (Carboniferous of the United States)

Where: Fergus County, Montana (47.0° N, 108.9° W: paleocoordinates 5.3° N, 35.1° W)

• 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, Lund

Collection methods: mechanical,

• Material is at the University of Montana

Primary reference: R. Lund. 1982. Harpagofututor volsellorhinus new genus and species (Chondrichthyes, Chondrenchelyiformes) from the Namurian Bear Gulch Limestone, Chondrenchelys problematica Traquair (Visean), and their sexual dimorphism. Journal of Paleontology 56(4):938-958 [J. Alroy/J. Alroy/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116659: authorized by Matthew Clapham, entered by Matthew Clapham on 10.09.2011, edited by Sophie Fasey

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Osteichthyes
Actinopterygii -	Mesopoma becketense² Mesopoma becketense² Lowney 1980 ray-finned fish UMVP 6998
Palaeonisciformes - Rhadinichthyidae	Wendyichthys lautreci⁴, Wendyichthys dicksoni n. gen.⁴, Cyranorhis bergeraci⁴ Wendyichthys lautreci⁴ Lund and Poplin 1997 Wendyichthys dicksoni n. gen.⁴ Lund and Poplin 1997 MV 6117-8, 6146, 8602, 8604, 8608-10 Cyranorhis bergeraci⁴ Lund and Poplin 1997 UMVP 38605
Actinopteri
- Tarrasiidae	Paratarrasius hibbardi⁸, Apholidotos ossna⁵ Paratarrasius hibbardi⁸ Lund and Melton 1982 Apholidotos ossna⁵ Lund 1991 "garden eel"
Osteichthyes
Fubarichthyiformes - Fubarichthyidae	Yogoniscus gulo², Fubarichthys sp.¹, Fubarichthys copiosus², Fubarichthys brevis², Fubarichthys prolatus⁵, Fubarichthys "rio"¹ Yogoniscus gulo² Lowney 1980 UMVP 36970 Fubarichthys sp.¹ Lowney 1980 UMVP 9994 Fubarichthys copiosus² Lowney 1980 UMVP 6884 Fubarichthys brevis² Lowney 1980 UMVP 8600 Fubarichthys prolatus⁵ Lowney 1980 Fubarichthys "rio"¹ Lowney 1980 UMVP 6155
- Aesopichthyidae	Aesopichthys erinaceus⁶, Proceramala montanensis⁶ Aesopichthys erinaceus⁶ Poplin and Lund 2000 MV 7790 Proceramala montanensis⁶ Poplin and Lund 2000 CM 41011a, b (holotype); CM 35222, 46005a, b; 62789a, b; This may be a duplicate from collection 90681
Phanerosteonoidei - Phanerosteonidae	Atrocauda lundae⁵ Atrocauda lundae⁵ Lowney 1980 "long pelvic"
-	Kalops diophrys⁷, Kalops monophrys⁷ Kalops diophrys⁷ Poplin and Lund 2002 UMVP 6139, 8617 Kalops monophrys⁷ Poplin and Lund 2002 UMVP 6131, and others
Chondrichthyes
Debeeriiformes - Debeeriidae	Heteropetalus elegantulus⁵ Heteropetalus elegantulus⁵ Lund 1977 chimaera
Chondrenchelyiformes - Chondrenchelyidae	Harpagofututor volsellorhinus Harpagofututor volsellorhinus Lund 1982 chimaera MV 6188, 6189
Symmoriiformes - Falcatidae	Falcatus falcatus³ Falcatus falcatus³ St. John and Worthen 1883 elasmobranch MV 6156

¹Henderson et al. 2023; ²Lowney 1980; ³Lund 1985; ⁴Lund and Poplin 1997; ⁵Lund and Poplin 1999; ⁶Poplin and Lund 2000; ⁷Poplin and Lund 2002; ⁸Sallan and Coates 2010