Pennsylvanian Fossils, Ely Limestone, Northern Needle Range: Desmoinesian - Carboniferous, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Paleococrinus sp.
Anthozoa - Stauriida - Cyathopsidae
Caninia sp. Michelin 1840
Demospongiae - Hadromerida - Suberitidae
Chaetetes milleporaceous
Stenolaemata - Cryptostomata - Fenestellidae
Fenestella sp. Lonsdale 1839
Rhynchonellata - Spiriferida - Trigonotretidae
Neospirifer triplicatus (Hall 1852)
replaced by Neospirifer dunbari
Spirifer cameratus Morton 1836
recombined as Neospirifer cameratus
Rhynchonellata - Spiriferida - Spiriferidae
Spirifer occidentalis Girty 1927
replaced by Anthracospirifer occiduus
Rhynchonellata - Athyridida - Athyrididae
Composita subtilita (Hall 1852)
Strophomenata - Productida - Productidae
Dictyoclostus americanus Dunbar and Condra 1932
recombined as Reticulatia americana
Strophomenata - Productida - Linoproductidae
Linoproductus ovatus (Hall 1858)
Strophomenata - Productida - Echinoconchidae
Juresania nebraskensis
Strophomenata - Productida
Marginifera muricata (Norwood and Pratten 1855)
recombined as Desmoinesia muricatina
Strophomenata - Orthotetida - Derbyiidae
Derbyia sp. Waagen 1884
Lingulata - Lingulida - Discinidae
Orbiculoidea capuliformis (McChesney 1859)
original and current combination Discina capuliforma
Orbiculoidea missouriensis (Shumard 1858)
Fusulinidae
Fusulinella sp. Moeller 1878
Schwagerinidae
Schwagerina sp. Moeller 1877
Pseudoschwagerina sp. Dunbar and Skinner 1936
see common names

Geography
Country:United States State/province:Utah County:Millard
Coordinates: 38.7° North, 114.0° West (view map)
Paleocoordinates:5.3° North, 40.2° West
Basis of coordinate:estimated from map
Time
Period:Carboniferous
*Period:Early/Lower Carboniferous - Middle Carboniferous *Local age/stage:Desmoinesian - Springeran
Key time interval:Desmoinesian - Carboniferous
Age range of interval:358.90000 - 298.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphy comments: The writer has placed the lower contact at the top of a brown crinoidal limestone unit of the Illipah Formation. The contact with the overlying Permian Arcturus Formation appears to be gradational in localities. The massive Ely limestones grade into thin bedded, shaly limestones whcih contain species fo "Schwagerina" and "Pseudoschwagerina", lower Wolfcampian fusulinids. The upper contact is placed approximately 600ft. above the first appearance of Wolfcampian fusulinids, at the beginning of the first sandstone units of the Arcturus Formation.
Lithology and environment
Primary lithology: "limestone"
Secondary lithology:ooidal sandy "limestone"
Lithology description: The units of the Ely Limestone represent cyclic deposition. They consist of massive bedded, encrinitic limestones which alternate with thin to medium bedded, oolitic, sandy limestones. Large amounts of black and brown weahtering chert, in irregular nodules and ribbon beds, occur in a cyclic pattern. The abundance of chert increases upward in the section, with nodules up to 4 ft. in diameter, comprising up to 50% of the total rock. Upon fracture, the encrinites emit fetid odor while the crystalline limestones emit a slight to moderate hydrocarbon odor.
Taphonomy
Collection methods and comments
Collection methods:field collection
Collection method comments: The fossils in the lower units are partially silicified forms which weather free. The fossils in the middle units occur as encrinites and poorly preserved hash.
Taxonomic list comments:Schwagerina sp. and Pseudoschwagerina sp. in the list were collected from the upper 600 ft.
Metadata
Database number:13364
Authorizer:T. Olszewski Enterer:M. Gibson
Modifier:M. Gibson Research group:marine invertebrate
Created:2002-03-10 08:43:29 Last modified:2003-07-18 18:01:39
Access level:the public Released:2002-03-10 08:43:29
Creative Commons license:CC BY
Reference information

Primary reference:
6006. W. J. Gould. 1959. Geology of the Northern Needle Range Millard County, Utah. Brigham Young University Research Studies, Geology Series 6(5):1-47 [T. Olszewski/M. Gibson/L. Fall]