Locality 18. Cedar Hill bluffs on north bank of South Fork of Jackfork Creek: Ludlow, Oklahoma

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Athyridida - Anoplothecidae
Coelospira saffordi
Rhynchonellata - Athyridida - Rhynchospirinidae
Homoeospira subgibbosa
Rhynchonellata - Athyridida - Meristellidae
Meristina roemeri
Rhynchonellata - Athyridida - Meristidae
Merista oklahomensis Amsden 1953
Rhynchonellata - Spiriferida - Delthyrididae
Delthyris kozlowskii
Rhynchonellata - Orthida - Orthidae
Orthostrophia cf. brownsportensis
Rhynchonellata - Orthida - Hesperorthidae
Schizoramma hami
synonym of Schizonema
Rhynchonellata - Orthida - Rhipidomellidae
Rhipidomella subtriangularis Amsden 1956
Rhipidomella henryhousensis n. sp. Amsden 1956
Rhipidomella acutisulcata Amsden 1956
Rhynchonellata - Orthida - Dalmanellidae
Parmorthis brownsportensis Amsden 1949
recombined as Resserella brownsportensis
Isorthis arcuaria (Hall and Clarke 1892)
Rhynchonellata - Atrypida - Atrypidae
Atrypa tennesseensis
Rhynchonellata - Rhynchonellida - Camarotoechiidae
Camarotoechia carmelensis
Camarotoechia oklahomensis
Camarotoechia filistriata
Rhynchonellata - Pentamerida - Gypidulidae
Sieberella roemeri
Rhynchonellata - Pentamerida - Parastrophinidae
Anastrophia delicata
Strophomenata - Orthotetida - Chilidiopsidae
Fardenia reedsi
Strophomenata - Strophomenida - Leptaenoideidae
Leptaenisca irregularis Amsden 1951
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena oklahomensis Amsden 1951
Strophomenata - Strophomenida - Strophonellidae
Strophonella loeblichi Amsden 1951
Strophomenata - Strophomenida - Strophodontidae
Lissostrophia cooperi Amsden 1949
see common names

Geography
Country:United States State/province:Oklahoma County:Pontotoc
Coordinates: 34.7° North, 96.7° West (view map)
Paleocoordinates:27.1° South, 60.6° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Silurian Epoch:Ludlow
10 m.y. bin:Silurian 2
Key time interval:Ludlow
Age range of interval:427.40000 - 423.00000 m.y. ago
Stratigraphy
Formation:Henryhouse
Stratigraphic resolution:group of beds
Stratigraphy comments: Lower part of formation
Lithology and environment
Primary lithology:yellow,blue "limestone"
Secondary lithology: "shale"
Includes fossils?Y
Lithology description: The Henryhouse formation was originally described by C. A. Reeds in 1911 (pp. 261-262) as consisting of "bluish to yellowish, thin- to moderately thick-bedded earthy limestone and intercalated shale beds in the lower 180 feet, while the upper 43 feet is of white marly beds."
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Metadata
Database number:170246
Authorizer:P. Wagner Enterer:P. Wagner
Research group:marine invertebrate
Created:2015-06-17 20:03:04 Last modified:2015-06-17 20:03:04
Access level:the public Released:2015-06-17 20:03:04
Creative Commons license:CC BY
Reference information

Primary reference:
53620. T. W. Amsden. 1951. Brachiopods of the Henryhouse Formation (Silurian) of Oklahoma. Journal of Paleontology 25(1 [3]):69-96 [P. Wagner/P. Wagner]