Where: Alaska (55.8° N, 133.1° W: paleocoordinates 6.5° S, 90.4° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Heceta Limestone Formation, Ludlow (427.4 - 423.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: wackestone
Size class: macrofossils
Preservation: replaced with silica
Reposited in the USNM
Primary reference: D. M. Rohr, R. B. Blodgett, and J. Frýda. 2008. Silurian Gastropoda from Southeastern and West-Central Alaska. Journal of Paleontology 82(3):604-611 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 80381: authorized by Pete Wagner, entered by Pete Wagner on 16.04.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Atrypoidea sp. Gill 1871 | |
Atrypa sp. Dalman 1828 | |
Gastropoda | |
Morania wagneri n. sp.
| |
Medfrazyga gilmulli n. sp.
Medfrazyga gilmulli n. sp. Rohr et al. 2008 snail | |
Haplospira craigi n. sp., "Pachystrophia cf. gotlandica" = Pachystrophia gotlandicus
Haplospira craigi n. sp. Rohr et al. 2008 snail
"Pachystrophia cf. gotlandica" = Pachystrophia gotlandicus Lindström 1884 snail | |
Spinicharybdis boucoti n. sp., Spinicharybdis krizi n. sp.
Spinicharybdis boucoti n. sp. Rohr et al. 2008 snail
Spinicharybdis krizi n. sp. Rohr et al. 2008 snail | |
Australonema sp. Tassell 1980 snail | |
Anthozoa | |
? Rhizophyllum sp. Lindström 1866 horn coral |