Where: Alaska (55.9° N, 133.0° W: paleocoordinates 55.9° N, 133.0° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Luck Creek Breccia Member (Descon Formation), Late/Upper Ordovician (458.4 - 443.8 Ma)
• a large clast of Late Ordovician limestone collected from near the base of the Lower Devonian Karheen Formation. PJW: Descon (or Luck Creek Breccia within Descon) would be more appropriate
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified limestone
Size class: macrofossils
Collection methods: The limestone clast includes sponges, tabulate corals, stromatoporoids, gastropods and brachiopods.
Primary reference: J. K. Rigby, S. M. Karl, R. B. Blodgett and J. F. Baichtal. 2005. Ordovician "sphinctozoan" sponges from Prince of Wales Island, southeastern Alaska. Journal of Paleontology 79(5):862-870 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 62309: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.07.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
| Demospongiae | |
|
Corymbospongia amplia n. sp. demosponge
Corymbospongia adnata Rigby and Potter 1986 demosponge | |
|
Amblysiphonella "sp. 1" Steinmann 1882 demosponge
? Amblysiphonella "sp. 2" Steinmann 1882 demosponge | |
? Girtyocoelia sp., "Girtyocoeliana epiporata n. gen." = Girtyocoelia epiporata
? Girtyocoelia sp. Cossman 1909 demosponge
"Girtyocoeliana epiporata n. gen." = Girtyocoelia epiporata Rigby and Potter 1986 demosponge | |
| Gastropoda | |
|
Maclurites sp. Le Sueur 1818 snail | |
|
Tropidodiscus sp. Meek and Worthen 1866 snail | |
| Rhynchonellata | |
|
Anazygoidea indet. Davidson 1883 | |
|
Catazyga sp. Hall and Clarke 1893 | |