Lead Bell Shale, Liberty: Delamaran, Idaho

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Eocrinoidea - Gogiida - Eocrinidae
Eocrinus longidactylus (Walcott 1886)
Orthothecida - Orthothecidae
Orthotheca sola
1 specimen found
Hyolithida - Hyolithidae
Hyolithes ornatellus Resser 1939
Hyolithes cecrops Walcott 1917
"Abundant"
Lingulata - Acrotretida - Acrotretidae
Acrotreta definita Walcott 1902
Acrotreta levata Resser 1939
Lingulata - Lingulida - Obolidae
Lingulella eucharis Resser 1939
Lingulata - Lingulida - Acrothelidae
Acrothele affinis Resser 1939
Paterinata - Paterinida - Paterinidae
Micromitra lepida Resser 1939
Iphidella grata Resser 1939
Rhynchonellata - Orthida - Bohemiellidae
Wimanella rara (Walcott 1908)
Wimanella nautes (Walcott 1912)
Wimanella spencei (Walcott 1912)
Agnostida - Peronopsidae
Agnostus bonnerensis Resser 1938
"Abundant"
Agnostida - Eodiscidae
Pagetia clytia Walcott 1916
"Abundant"
Trilobita - Ptychopariida - Ptychopariidae
Stauroholcus typicalis Resser 1939
Spencia plena Resser 1939
Trilobita - Ptychopariida - Alokistocaridae
Bythicheilus alveatum Resser 1939
Bythicheilus typicum Resser 1939
Chancia ebdome
Chancia evax
Chancia angusta Resser 1939
Elrathia offula
"Represented by only a few cranidia"
Elrathia spencei Resser 1939
Elrathia rara Resser 1939
"Single individual, consisting of the cranidium and 17 segments"
Alokistocare septum Resser 1939
Alokistocare spencense Resser 1939
"Abundant"
Alokistocarella spencei Resser 1939
Clappaspis lanata Resser 1939
"Single cranidium"
Clappaspis coriacea Resser 1939
Clappaspis dotis Resser 1939
"This species is represented by the largest number of specimens"
Clappaspis spencei Resser 1939
Clappaspis idahoensis Resser 1939
"Three complete individuals"
Alokistocare laticaudum Resser 1939
Alokistocare idahoense Resser 1939
Trilobita - Utiidae
Utia curio Walcott 1924
"Several hundred specimens"
Trilobita - Corynexochida - Dolichometopidae
Poliella caranus (Walcott 1916)
Poliella anteros Walcott 1916
Glossopleura similaris Resser 1939
Glossopleura bion (Walcott 1916)
Clavaspidella bithus (Walcott 1916)
Bathyuriscus atossa Walcott 1916
Trilobita - Corynexochida - Oryctocephalidae
Oryctocephalus walcotti Resser 1938
"Common"
Oryctocara geikei
"Rare" Originally "Oryctocare geikei" Assumed spelling error.
Trilobita - Corynexochida - Dorypygidae
Kootenia idahoensis Resser 1939
Kootenia spencei Resser 1939
"Only two incomplete pygidia have been found"
Trilobita - Corynexochida - Zacanthoididae
? Vistoia minuta Resser 1939
Zacanthoides adjunctus Resser 1939
Zacanthoides serratus Resser 1939
"Relatively uncommon"
Zacanthoides holopygus Resser 1939
"Most common Spence Shale species"
Zacanthoides gradatus Resser 1939
Zacanthoides abbreviatus Resser 1939
"Represented by fewer specimens than most other species in the
Zacanthoides idahoensis Walcott 1908
Selkirkiimorpha - Selkirkiidae
Selkirkia spencei Conway Morris and Robison 1986
Archaeocyatha - Archaeocyathida - Archaeocyathidae
Archaeocyathus sp. Billings 1861
unclassified
Morania sp. Walcott 1919
see common names

Geography
Country:United States State/province:Idaho
Coordinates: 42.0° North, 112.0° West (view map)
Paleocoordinates:5.7° South, 89.7° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian
10 m.y. bin: Cambrian 3
Key time interval: Delamaran Trilobite zone:  Glossopleura
Age range of interval: 511 - 506.5 m.y. ago
Stratigraphy
Formation:Lead Bell Shale Member:Spence Tongue
Stratigraphic resolution:formation
Stratigraphy comments: Listed as Lower to Middle Cambrian; Glossopleura zone
Lithology and environment
Primary lithology:concretionary,shelly/skeletal poorly lithified argillaceous,sandy "shale"
Lithology description: Argillaceous and sandy shale with occasional fossiliferous lime nodules
Environment:offshore shelf
Geology comments: Liddell, Wright, and Brett (1997) note that Langston Fm. (Spence Shale) deepens from Antimony Canyon (primarily outer carbonate belt) to Miners Hollow [both Utah] to Oneida Narrows [Idaho] (outer detrital belt/deep ramp)
Taphonomy
Modes of preservation:body
Degree of concentration:-single event
Size of fossils:macrofossils,mesofossils
Spatial orientation:life position
Articulated whole bodies:some
Size sorting:poor
Fragmentation:occasional
Temporal resolution:snapshot
Spatial resolution:autochthonous
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:Glossopleura zone; All species described except for the "most obscure ones"; Tongue is only 30 feet thick
Metadata
Also known as:Spence Shale
Database number:76096
Authorizer:P. Novack-Gottshall Enterer:P. Hearn
Modifier:P. Wagner Research group:marine invertebrate
Created:2007-11-13 13:51:49 Last modified:2018-06-29 01:03:42
Access level:the public Released:2007-11-13 13:51:49
Creative Commons license:CC BY
Reference information

Primary reference:
25798. C. E. Resser. 1939. The Spence Shale and its fauna. Smithsonian Miscellaneous Collections 97(12):1-29 [P. Novack-Gottshall/P. Hearn/M. Hopkins]