Where: Smyth County, Virginia (36.9° N, 81.7° W: paleocoordinates 30.3° S, 66.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Hustedograptus teretiusculus graptolite zone, Arline Formation, Darriwilian (467.3 - 458.4 Ma)
• this interval falls within the lower part of the Pygodus anserinus Zone and the upper part of the Pygodus serrus Zone.
•
•... which occur above the Maclurites beds of the Lenoir and interfinger with black shale of the Rich Valley formation.
• formation-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
Reposited in the USNM
Primary reference: G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 162406: authorized by Pete Wagner, entered by Pete Wagner on 24.09.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Valcourea semicarinata n. sp.
Valcourea semicarinata n. sp. Cooper 1956 | |
Strophomenata | |
Sowerbyella silicica n. sp.
| |
Leptellina transversa n. sp., Palaeostrophomena subtransversa n. sp.
Leptellina transversa n. sp. Cooper 1956
Palaeostrophomena subtransversa n. sp. Cooper 1956 | |
Dactylogonia geniculata Ulrich and Cooper 1942 | |
Opikina matutina n. sp.
Opikina matutina n. sp. Cooper 1956 |