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Spence Shale
Member of the Langston Formation in Idaho and Utah, United States From Wikipedia, the free encyclopedia
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The Spence Shale is the middle member of the Langston Formation in southeastern Idaho and northeastern Utah. It is exposed in the Bear River Range, the Wasatch Range and the Wellsville Mountains. It is known for its abundant Cambrian trilobites and the preservation of Burgess Shale-type fossils.[1]
The type locality is Spence Gulch in southeastern Idaho, near the town of Liberty. It was first described by Charles Doolittle Walcott in 1908.[2]
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Stratigraphy
The Spence Shale spans the Albertella and Glossopleura biozones.[3]
Fauna
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Generic list of the fauna of the Spence Shale:[4][5][6]
Arthropoda
Soft-bodied
- Anomalocaris
- Canadaspis
- Caryosyntrips
- Dioxycaris
- Hurdia
- Isoxys
- Leanchoilia
- Meristosoma
- Mollisonia
- Sidneyia
- Tuzoia
- Utahcaris
- Waptia
- Yohoia
Agnostida
Trilobita
- Alokistocare
- Alokistocarella
- Amecephalus
- Athabaskia
- Bathyuriscus
- Bythicheilus
- Chancia
- Ehmaniella
- Glossopleura
- Kochina
- Kootenia
- Ogygopsis
- Olenoides
- Oryctocara
- Oryctocephalites
- Oryctocephalus
- Pagetia
- Piochaspis
- Polypleuraspis
- Ptychoparella
- Solenopleura
- Syspacephalus
- Thoracocare
- Utia
- Zacanthoides
Brachiopoda
- Acrothele
- Dictyonina
- Diraphora
- Lingulella
- Micromitra?
- Wimanella
Mollusca
Lophotrochozoa
Echinodermata
- Ctenocystis
- Gogia
- Lyracystis
- Ponticulocarpus
- Totiglobus
Hemichordata
- Margaretia
- Sphenoecium
Priapulida
Lobopodia
Porifera
Problematica
Algae
Cyanobacteria
Trace Fossils
- Archaeonassa
- Arenicolites
- Aulichnites
- Bergaueria
- Chloephycus
- Conichnus
- Coprolite
- Cruziana
- Dimorphichnus
- Diplichnites
- Gordia
- Gyrophyllites
- Halopoa
- Lockeia
- Monomorphichnus
- Nereites
- Phycodes
- Phycosiphon
- Planolites
- Protovirgularia
- Rusophycus
- Sagittichnus
- Scolicia
- Taenidium
- Teichichnus
- Tomaculum
- Treptichnus
- Trichophycus
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See also
References
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