IC-6A Iron City, Wayne Fm., Wenlock conodonts (Silurian of the United States)

Where: Lawrence County, Tennessee (35.0° N, 87.6° W: paleocoordinates 30.5° S, 55.7° W)

• coordinate estimated from map

When: Lego Member (Wayne Formation), Homerian (430.5 - 427.4 Ma)

Environment/lithology: open shallow subtidal; lithified packstone and lithified wackestone

• A mixture of skeletal packstones, less common wackestones and rare grainstones form Facies III. No significant difference in composition exists between Facies II and Facies III strata. In Facies III beds, though, skeletal grains are more badly broken and abraded than in Facies II strata. Fragments of larger grains that have been broken and abraded beyond recognition comprise the unidentified fraction. Small scale discontinuity surfaces covered with concentrations of moderately well-sorted skeletal grainstone are common. As in Facies II, most of the larger grains have been bored to some extent.

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 164119: authorized by Wolfgang Kiessling, entered by Emilia Jarochowska on 24.11.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Belodellida - Belodellidae
Walliserodus ? sancticlairi
Walliserodus ? sancticlairi Cooper 1976 conodont
[entered as Walliserodus sancticlari]
 Prioniodontida - Strachanognathidae
Decoriconus fragilis
Decoriconus fragilis Branson and Mehl 1933 conodont
 Prioniodontida -
Pseudooneotodus bicornis
Pseudooneotodus bicornis Drygant 1974 conodont
 Panderodontida - Panderodontidae
Panderodus sp.
Panderodus sp. Ethington 1959 conodont
n. sp.