Also known as MI 7106
Where: Fergus County, Montana (46.9° N, 109.0° 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
Size class: macrofossils
Preservation: adpression, concretion, soft parts
Collection methods: mechanical,
• Material is at the University of Montana
Primary reference: F. R. Schram. 1979. Limulines of the Mississippian Bear Gulch Limestone of Central Montana, USA. Transactions of the San Diego Society of Natural History 19(6):67-74 [C. Schweitzer/L. Baltzly]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 and Sophie Fasey
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
"Metazoa indet." = Animalia18
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Archisymplectes rhothon | |
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Deuteronectanebos papillorum | |
Deuteronectanebos papillorum n. gen. n. sp.23
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Cephalopoda | |
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Polychaeta | |
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Carbosesostris megaliphagon n. gen. n. sp.23
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Phiops aciculorum n. gen. n. sp.23
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Xiphosura | |
"Paleolimulus longispinus n. sp." = Boeotiaspis longispinus
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Agnatha | |
Hardistiella montanensis n. gen. n. sp.5
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Chondrichthyes | |
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Falcatus falcatus10 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
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Delphyodontos dacriformes n. gen. n. sp.8
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Echinochimaera meltoni n. gen. n. sp.7
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Belantsea montana n. gen. n. sp.12
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Siksika ottae n. gen. n. sp.13
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Janassa clarki n. sp.13
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Osteichthyes | |
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Yogoniscus lojo4, Yogoniscus gulo6, Fubarichthys sp.4, Fubarichthys brevis6, Fubarichthys "rio"4, Fubarichthys copiosus6, Fubarichthys prolatus6
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Actinopteri | |
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Osteichthyes | |
Wendyichthys lautreci n. sp.16, Wendyichthys dicksoni n. gen. n. sp.16, Rhadinichthys sp.4, Cyranorhis bergeraci n. gen.16
Wendyichthys lautreci n. sp.16 Lund and Poplin 1997
Wendyichthys dicksoni n. gen. n. sp.16 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
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Guildayichthys carnegiei22 Lund 2000 |