Also known as Spence Shale
Where: Idaho (42.0° N, 112.0° W: paleocoordinates 5.7° S, 89.7° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Glossopleura trilobite zone, Spence Tongue Member (Lead Bell Shale Formation), Delamaran (511.2 - 506.5 Ma)
• Listed as Lower to Middle Cambrian; Glossopleura zone
• formation-level stratigraphic resolution
Environment/lithology: offshore shelf; poorly lithified, concretionary, shelly/skeletal, argillaceous, sandy shale
Size classes: macrofossils, mesofossils
Primary reference: C. E. Resser. 1939. The Spence Shale and its fauna. Smithsonian Miscellaneous Collections 97(12):1-29 [P. Novack-Gottshall/P. Hearn/M. Hopkins]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 76096: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 13.11.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Archaeocyatha | |
Archaeocyathus sp. Billings 1861 archaeocyath sponge | |
Eocrinoidea | |
Eocrinus longidactylus Walcott 1886 | |
Artiopoda | |
| |
"Agnostus bonnerensis" = Pentagnostus bonnerensis
| |
Trilobita | |
Bythicheilus typicum, Bythicheilus alveatum, Alokistocarella spencei, Clappaspis dotis, Clappaspis idahoensis, Clappaspis spencei, Clappaspis coriacea, Clappaspis lanata, Chancia ebdome, Chancia evax, Chancia angusta, Elrathia offula, Elrathia rara, Elrathia spencei, "Alokistocare laticaudum" = Amecephalus laticaudum, "Alokistocare idahoense" = Amecephalus idahoense, Alokistocare septum, Alokistocare spencense
Bythicheilus typicum Resser 1939 trilobite
Bythicheilus alveatum Resser 1939 trilobite
Alokistocarella spencei Resser 1939 trilobite
Clappaspis dotis Resser 1939 trilobite "This species is represented by the largest number of specimens"
Clappaspis spencei Resser 1939 trilobite
Clappaspis coriacea Resser 1939 trilobite
Chancia ebdome trilobite
Chancia evax trilobite
Chancia angusta Resser 1939 trilobite
Elrathia rara Resser 1939 trilobite "Single individual, consisting of the cranidium and 17 segments"
Elrathia spencei Resser 1939 trilobite
"Alokistocare laticaudum" = Amecephalus laticaudum Resser 1939 trilobite
"Alokistocare idahoense" = Amecephalus idahoense Resser 1939 trilobite
Alokistocare septum Resser 1939 trilobite | |
Spencia plena Resser 1939 trilobite
Stauroholcus typicalis Resser 1939 trilobite | |
? Vistoia minuta, Zacanthoides abbreviatus, Zacanthoides serratus, Zacanthoides adjunctus, Zacanthoides holopygus, Zacanthoides gradatus, Zacanthoides idahoensis
? Vistoia minuta Resser 1939 trilobite
Zacanthoides abbreviatus Resser 1939 trilobite "Represented by fewer specimens than most other species in the
Zacanthoides adjunctus Resser 1939 trilobite
Zacanthoides gradatus Resser 1939 trilobite
Zacanthoides idahoensis Walcott 1908 trilobite | |
"Oryctocephalus walcotti" = Oryctocephalites reynoldsi, Oryctocara geikei
| |
Kootenia idahoensis Resser 1939 trilobite | |
"Poliella caranus" = Bathyuriscus (Poliella) caranus, Poliella anteros, Bathyuriscus atossa, "Clavaspidella bithus" = Bathyuriscus bithus, Glossopleura bion, Glossopleura similaris
"Poliella caranus" = Bathyuriscus (Poliella) caranus Walcott 1916 trilobite
Poliella anteros Walcott 1916 trilobite
Bathyuriscus atossa Walcott 1916 trilobite
"Clavaspidella bithus" = Bathyuriscus bithus Walcott 1916 trilobite
Glossopleura bion Walcott 1916 trilobite
Glossopleura similaris Resser 1939 trilobite | |
| |
Hyolitha | |
| |
"Hyolithes cecrops" = Haplophrentis carinatus, Hyolithes ornatellus
Hyolithes ornatellus Resser 1939 | |
Rhynchonellata | |
Lingulata | |
Lingulella eucharis Resser 1939 | |
Acrothele affinis Resser 1939 | |
Acrotreta definita Walcott 1902
Acrotreta levata Resser 1939 | |
Paterinata | |
Iphidella grata Resser 1939
Micromitra lepida Resser 1939 | |
Morania | |
Morania sp. Walcott 1919 |