Where: Arkansas (35.8° N, 91.6° W: paleocoordinates 27.5° S, 58.4° W)
• coordinate based on political unit
• local area-level geographic resolution
When: St. Clair Limestone Formation, Wenlock (433.4 - 427.4 Ma)
• "Late [sic; this must be misprint for Lower] to middle Wenlockian, apparently mostly Kockelella ranuliformis Zone, but extending into the lower K. Amsdeni Zone."
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; shelly/skeletal grainstone and shelly/skeletal wackestone
•SEP environmental call based on scanty given info. and ref (see 26022)
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 26800: authorized by Michael Foote, entered by Michael Foote on 01.11.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhombifera | |
Caryocrinites sp. Say 1825 | |
Holocystites (Holocystites) alternatus Hall 1861 | |
Crinoidea | |
Eucalyptocrinites sp. Goldfuss 1831 Sea lily | |
Macrostylocrinus sp. Sea lily | |
Blastoidea | |
Cupulocorona osgoodensis blastoid
Cupulocorona gemmiformis Hall 1872 blastoid | |
|