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Bloyd Shale, Arkansas, USA

FormationBloyd Shale
Member(s)Brentwood
Woolsey
Age:318 - 315 Ma
Carboniferous
IntervalMorrowan
Lithologysiliciclastic
Number of Collections1
Number of Occurrences1

Recorded Sample Locations

LocationRegionStratigraphic Name
Road side collectionWashington County, Arkansas, USABloyd Shale - Brentwood
Fayetteville QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Winslow QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Fayetteville QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
East MountainWashington County, Arkansas, USABloyd Shale - Brentwood
Winslow QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Harrison QuadrangleCarroll County, Arkansas, USABloyd Shale - Brentwood
Drakes CreekMadison County, Arkansas, USABloyd Shale - Brentwood
WoolseyWashington County, Arkansas, USABloyd Shale - Brentwood
Winslow QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Winslow QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Fayetteville QuadrangleWashington County, Arkansas, USABloyd Shale - Brentwood
Lee CreekWashington County, Arkansas, USABloyd Shale - Brentwood
Lemons Coal BankWashington County, Arkansas, USABloyd Shale - Woolsey
6 miles northeast of FayettevilleWashington County, Arkansas, USABloyd Shale
Brentwood StationWashington County, Arkansas, USABloyd Shale - Brentwood?

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Bloyd - Brentwood Limestone318 - 315 Ma
Carboniferous
limestone/"shale"63
Bloyd - Conglomerate318 - 315 Ma
Carboniferous
sandstone3
Bloyd - Kessler Limeston318 - 315 Ma
Carboniferous
limestone3
Bloyd - Kessler Limestone318 - 315 Ma
Carboniferous
limestone5
Bloyd Shale - Brentwood318 - 315 Ma
Carboniferous
shale/"limestone", "limestone"/"shale", "limestone", sandstone50
Bloyd Shale - Woolsey318 - 315 Ma
Carboniferous
shale/coal1
Hale - Prairie Grove318 - 315 Ma
Carboniferous
limestone, sandstone, grainstone, grainstone/sandstone, "limestone"/sandstone186
Pitkin326 - 318 Ma
Carboniferous
limestone, grainstone/mudstone, grainstone/lime mudstone, "shale", wackestone, grainstone, "shale"/dolomite, siltstone226
Pentremital Limestone - Bloyd - Brentwood318 - 315 Ma
Carboniferous
shale/"limestone"4

Recorded Fossils

Accepted NameHierarchyAge
Anthracomartus trilobitus
species
7Animalia : Arthropoda : Arachnida : Anthracomartidae : Anthracomartus : Anthracomartus trilobitus318.1 - 314.6 Ma
Carboniferous
Archimastax americanus
species
7Animalia : Arthropoda : Insecta : Protorthoptera : Archimastax : Archimastax americanus318.1 - 314.6 Ma
Carboniferous
Proshumardites morrowanus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Delepinoceratidae : Proshumardites : Proshumardites morrowanus318.1 - 314.6 Ma
Carboniferous
Gastrioceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Gastrioceratidae : Gastrioceras318.1 - 314.6 Ma
Carboniferous
Gastrioceras (Lissogastrioceras) fittsi
species
7Animalia : Mollusca : Cephalopoda : Goniatitida : Gastrioceratidae : Gastrioceras : Gastrioceras (Lissogastrioceras) fittsi318.1 - 314.6 Ma
Carboniferous
Glaphyrites depressus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Glaphyritidae : Glaphyrites : Glaphyrites depressus318.1 - 314.6 Ma
Carboniferous
Glaphyrites morrowensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Glaphyritidae : Glaphyrites : Glaphyrites morrowensis318.1 - 314.6 Ma
Carboniferous
Syngastrioceras oblatum
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Glaphyritidae : Syngastrioceras : Syngastrioceras oblatum318.1 - 314.6 Ma
Carboniferous
Homoceratoides cracens
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Ramositidae : Homoceratoides : Homoceratoides cracens318.1 - 314.6 Ma
Carboniferous
Pygmaeoceras solidum
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Reticuloceratidae : Verneuilites : Pygmaeoceras solidum318.1 - 314.6 Ma
Carboniferous
Verneuilites pygmaeus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Reticuloceratidae : Verneuilites : Verneuilites pygmaeus318.1 - 314.6 Ma
Carboniferous
Branneroceras branneri
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Schistoceratidae : Branneroceras : Branneroceras branneri318.1 - 314.6 Ma
Carboniferous
Stearoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Nautilida : Grypoceratidae : Stearoceras318.1 - 314.6 Ma
Carboniferous
Stearoceras smithi
species
7Animalia : Mollusca : Cephalopoda : Nautilida : Grypoceratidae : Stearoceras : Stearoceras smithi318.1 - 314.6 Ma
Carboniferous
Liroceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Nautilida : Liroceratidae : Liroceras318.1 - 314.6 Ma
Carboniferous
Perigrammoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Nautilida : Perigrammoceras318.1 - 314.6 Ma
Carboniferous
Solenochilus sp.
genus
6Animalia : Mollusca : Cephalopoda : Nautilida : Solenochilidae : Solenochilus318.1 - 314.6 Ma
Carboniferous
Pseudopronorites arkansiensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Pronoritidae : Pseudopronorites : Pseudopronorites arkansiensis318.1 - 314.6 Ma
Carboniferous
Mooreoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Pseudorthoceratidae : Mooreoceras318.1 - 314.6 Ma
Carboniferous
Pseudorthoceras knoxense
species
7Animalia : Mollusca : Cephalopoda : Pseudorthocerida : Pseudorthoceratidae : Pseudorthoceras : Pseudorthoceras knoxense318.1 - 314.6 Ma
Carboniferous
Euloxoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Pseudorthoceratidae : Euloxoceras318.1 - 314.6 Ma
Carboniferous

References

Scudder S. H. A contribution to our knowledge of Paleozoic Arachnida, Proceedings of the American Academy of Arts and Sciences 20, 15-22
Handlirsch A. (1906) Die Fossilen Insekten und die Phylogenie der Rezenten Formen, parts I-IV, Ein Handbuch fur Palaontologen und Zoologen, 1-640
Gordon, Jr. M. (1964) Carboniferous Cephalopods of Arkansas, United States Geological Survey Professional Paper 460, 1-322
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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