Locality 27. Chimneyhill Creek and bluff to north, 7 miles south of Ada (Silurian of the United States)

Where: Pontotoc County, Oklahoma (34.7° N, 96.7° W: paleocoordinates 28.6° S, 59.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Ozarkodina eosteinhornensis conodont zone, Henryhouse Formation, Pridoli (423.0 - 419.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: yellow, blue limestone and shale

• 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."

Size classes: macrofossils, mesofossils

Reposited in the USNM

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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 170263: authorized by Pete Wagner, entered by Pete Wagner on 17.06.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Strophodontidae
 Strophomenida - Rafinesquinidae
 Orthotetida - Chilidiopsidae
Rhynchonellata
 Pentamerida - Parastrophinidae
 Pentamerida - Gypidulidae
 Orthida - Hesperorthidae
 Orthida - Dalmanellidae
Isorthis arcuaria, "Parmorthis brownsportensis" = Resserella brownsportensis
Isorthis arcuaria Hall and Clarke 1892
"Parmorthis brownsportensis" = Resserella brownsportensis Amsden 1949
 Orthida - Rhipidomellidae
 Athyridida - Rhynchospirinidae
 Athyridida - Meristidae
 Athyridida - Nucleospiridae
 Atrypida - Atrypidae
 Atrypida - Lissatrypidae
"Nanospira parvula" = Lissatrypa
"Nanospira parvula" = Lissatrypa