Edriocrinus-Pygmaeocrinus Association, Bois d'Arc (Silurian to of the United States)

Where: Oklahoma (34.4° N, 96.5° W: paleocoordinates 31.2° S, 57.4° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Hunton Group, Pridoli to Pridoli (423.0 - 410.8 Ma)

• "Lower Devonian (Gedinnian). Lower Haragan Formation and Cravatt Member, Bois d'Arc Formation."

Environment/lithology: deep subtidal ramp; argillaceous, silty wackestone and micaceous, argillaceous, cherty/siliceous wackestone

• "An outer BA 4 to inner 5 (most likely the latter) position is probable"

•SEP environmental call based on given information and knowledge of local strat

• "The Haragan is a thin-bedded muddy to silty calcareous wackestone (marlstone) that weathers to form glades with a rubble of calcareous nodules and losse fossils. The Cravatt Member..is similar but more calcareous and often variabley cherty...In both units fossils are commonly concentrated into thin horizons or lenses, only very rarely showing size sorthing or winnowing...holdfasts common..."

Size class: macrofossils

Reposited in the OU

Primary reference: T. J. Frest, C. E. Brett, and B. J. Witzke. 1999. Caradocian-Gedinnian echinoderm associations of Central and Eastern North America. Paleocommunities--a case study from the Silurian and Lower Devonian 638-783 [M. Foote/K. Koverman/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26826: authorized by Michael Foote, entered by Michael Foote on 05.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Anthozoa
 Rugosa -
Rugosa indet. horn coral
 Favositida - Favositidae
Favosites sp. Lamarck 1816 tabulate coral
Demospongiae
 Streptosclerophorida - Hindiidae
Hindia sp. Duncan 1879 demosponge
 Rhombifera - Pleurocystitidae
Crinoidea
 Monobathrida - Scyphocrinitidae
Liomolgocrinus sp. Strimple 1963 Sea lily
Scyphocrinites sp. Zenker 1833 Sea lily
 Flexibilia - Edriocrinidae
Edriocrinus sp. Hall 1858 Sea lily
 Sagenocrinida -
 Sagenocrinida - Lecanocrinidae
 Belemnocrinoidea - Synbathocrinidae
Phimocrinus sp. Schultze 1867 Sea lily
 Belemnocrinoidea - Pygmaeocrinidae
 Myelodactylida - Myelodactylidae
Myelodactylus sp. Hall 1852 Sea lily
 Sphaeronitida - Sphaeronitidae
Eucystis sp. Angelin 1878
Stylophora
 Mitrata - Anomalocystitidae
Strophomenata
 Orthotetida - Pulsiidae
 Orthotetida - Schuchertellidae
 Strophomenida - Sowerbyellidae
Plectodonta petila1 Amsden 1958
 Strophomenida - Strophodontidae
 Strophomenida - Chonetidae
? Chonetes sp.1 Fischer de Waldheim 1830
 Strophomenida - Leptostrophiidae
 Strophomenida - Leptaenoideidae
 Strophomenida - Strophonellidae
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Athyridida - Rhynchospirinidae
 Athyridida - Anoplothecidae
Coelospira virginia1 Amsden 1958
 Athyridida - Meristellidae
 Athyridida - Nucleospiridae
Nucleospira ventricosa1 Hall 1857
[entered as Nucleopsira ventricosa]
 Terebratulida - Centronellidae
 Protorthida - Skenidiidae
 Spiriferinida - Cyrtinidae
 Atrypida - Atrypinidae
Atrypina hami1 Amsden 1958
 Atrypida - Atrypidae
Atrypa oklahomensis1 Girty 1899
 Orthida - Orthidae
 Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
 Orthida - Dicoelosiidae
Dicoelosia varica1 Conrad 1842
 Orthida - Dalmanellidae
Isorthis pygmaea1 Dunbar 1919
 Pentamerida - Parastrophinidae
Anastrophia grossa1 Amsden 1958
 Pentamerida - Gypidulidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Camarotoechiidae
? Camarotoechia sp.1 Hall and Clarke 1893
 Rhynchonellida - Hebetoechiidae
 Rhynchonellida - Eatoniidae
Eatonia exserta1 Amsden 1958
 Rhynchonellida - Obturamentellidae
Obturamentella wadei1 Dunbar 1919
 Spiriferida - Delthyrididae
 Spiriferida - Cyrtinopsidae
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
Sedentaria
 Sabellida - Serpulidae
Spirorbis sp. Daudin 1800
Trilobita
 Odontopleurida - Odontopleuridae
Ceratonurus sp.2 Prantl and Pribyl 1949 trilobite
 Proetida - Brachymetopidae
Cordania falcata2 trilobite
 Proetida - Otarionidae
Otarion axitosum n. sp.2 trilobite
 Proetida - Proetidae
"Dechenellidae indet." = Dechenellinae2
"Dechenellidae indet." = Dechenellinae2 Pribyl 1946 trilobite
 Corynexochida - Styginidae
Scutelluidae indet.2 Richter and Richter 1955 trilobite
 Lichida - Lichidae
"Echinolichas coccymelum n. sp." = Oinochoe coccymelum2
"Echinolichas coccymelum n. sp." = Oinochoe coccymelum2 Campbell 1977 trilobite
 Phacopida - Cheiruridae
Cheiruridae indet.2 Hawle and Corda 1847 trilobite
 Phacopida - Phacopidae
"Reedops deckeri" = Lochkovella deckeri2 Delo 1935 trilobite
 Phacopida - Dalmanitidae
"Huntonia (Huntonia) lingulifer" = Huntoniatonia2, "Huntonia (Huntonia) huntonensis" = Huntoniatonia2, "Huntonia (Huntonia) oklahomae" = Huntoniatonia2, "Huntonia (Huntonia) sp." = Huntoniatonia2, "Huntonia (Huntonia) purduei" = Huntoniatonia2, "Odontochile" taffi2, Odontochile syncrama2
"Huntonia (Huntonia) lingulifer" = Huntoniatonia2 trilobite
"Huntonia (Huntonia) huntonensis" = Huntoniatonia2 trilobite
"Huntonia (Huntonia) oklahomae" = Huntoniatonia2 trilobite
"Huntonia (Huntonia) sp." = Huntoniatonia2 Campbell trilobite
"new form"
"Huntonia (Huntonia) purduei" = Huntoniatonia2 trilobite
Ostracoda
 Myodocopida -
Ranapeltis rowlandi n. sp.3 ostracod
 Podocopida - Thlipsuridae
 Podocopida - Krausellidae
 Podocopida -
Rishona sp.3 ostracod
 Podocopida - Bairdiocyprididae
 Podocopida - Bythocyprididae
 Palaeocopida - Kirkbyellidae
 Palaeocopida - Kloedenellidae
 Palaeocopida - Arcyzonidae
 Palaeocopida - Pachydomellidae
 Palaeocopida - Leperditellidae
 Palaeocopida - Bolliidae
Jonesites circa3 ostracod
? Jonesites huntonensis n. sp.3 ostracod
Ulrichia sp.3 Jones 1890 ostracod
 Palaeocopida - Aechminellidae
? Bicornella unicornis n. sp.3 ostracod
 Palaeocopida - Aechminidae
Aechmina geneae3 ostracod
Aechmina spp.3 Jones and Holl 1869 ostracod
Aechminaria "sp. A"3 Coryell and Williamson 1936 ostracod
Paraechmina spp.3 Ulrich and Bassler 1923 ostracod
 Palaeocopida - Drepanellidae
 Palaeocopida - Hollinidae
 Palaeocopida -
Huntonella unicornis n. gen. n. sp.3
Huntonella unicornis n. gen. n. sp.3 ostracod