Where: Hickman County, Tennessee (35.8° N, 87.5° W: paleocoordinates 29.7° S, 55.5° W)
• coordinate estimated from map
When: Maddox Member (Wayne Formation), Wenlock (433.4 - 427.4 Ma)
Environment/lithology: open shallow subtidal; lithified packstone and lithified wackestone
•Skeletal grains are more abundant than in Facies I and the quantity of lime mud is correspondingly less. Remains of echinoderms increase significantly and bryozoan and trilobite detritus increase slightly from Facies I. Ostracodes and molluscan remains are less common. Skeletal preservation is good, but more larger grains are broken than in Facies I and some are abraded. The number of unidentified skeletal grains is less than in Facies I, largely due to the scarcity of the slender unidentifiable grains common in that facies. Some sorting of skeletal grains has occurred, but this is not common.
Size class: microfossils
Preservation: original phosphate
Collection methods: chemical, acetic
Primary reference: J. E. Barrick. 1983. Wenlockian (Silurian) Conodont Biostratigraphy, Biofacies, and Carbonate Lithofacies, Wayne Formation, Central Tennessee. Journal of Paleontology 57(2):208-239 [W. Kiessling/E. Jarochowska]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 164035: authorized by Wolfgang Kiessling, entered by Emilia Jarochowska on 23.11.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
| Conodonta | |
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Ozarkodina excavata excavata conodont | |
|
Distomodus staurognathoides Walliser 1964 conodont | |
|
Pseudooneotodus bicornis Drygant 1974 conodont | |
|
Decoriconus fragilis Branson and Mehl 1933 conodont | |
|
Kockelella ranuliformis Walliser 1964 conodont | |
|
| |
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Dapsilodus obliquicostatus Branson and Mehl 1933 conodont | |
|
Panderodus unicostatus Branson and Mehl 1933 conodont | |