Where: Oklahoma (34.0° N, 97.0° W: paleocoordinates 22.5° S, 73.8° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Pooleville Member (Bromide Formation), Blackriveran (457.3 - 449.6 Ma)
• member-level stratigraphic resolution
Environment/lithology: limestone and gray, calcareous shale
• Shallow water; tidal flat, lower intertidal. Environments from M. W. Longman. 1982. Depositional environments. Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma: Lawrence, Kansas, University of Kansas Paleontological Institute Monograph 11 : 17-29.
• "[M[ainly biomicrite and microspar limestone, interbedded with greenish-gray calcareous shale along the axis of the aulacogen. The type section in the southwestern Arbuckles is 71 m thick, with much greenish-gray calcareous shale, and probably represents an area close to the Pooleville depocenter. In most of the Arbuckle Mountains, the upper 5 m of Pooleville is a massive burrowed micrite or calcilutite of the intertidal facies. In the Criner Hills, the Pooleville is about 40 m thick and is mainly a thin-bedded to medium-bedded mudstone or microspar limestone, deposited along the southern margin of the aulacogen. In the northeastern adn northern Arbuckles, the Pooleville is less than 21 m thick, with some birdseye micrite in the upper part." Lithology from R, O. Fay and A. A. Graffman. 1982. Stratigraphic studies. Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma: Lawrence, Kansas, University of Kansas Paleontological Institute Monograph 11 : 11-16. Edited by J. Sprinkle.
Size class: macrofossils
Primary reference: R. O. Fay and A. A. Graffham. 1982. Biostratigraphic and paleontological studies. Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma: Lawrence, Kansas, University of Kansas Paleontological Institute Monograph 11 30-33 [S. Holland/T. Hanson/T. Hanson]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 23900: authorized by Steven Holland, entered by Tori Hanson on 23.07.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
• After Decker, 1935, 1936a, b, 1941, 1943.
Show authors, comments, and common names
Pterobranchia |
Dendroidea - Acanthograptidae |
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Graptoloidea - Diplograptidae |
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Graptoloidea - Dicranograptidae |
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