M1003-CO Hard Luck Creek section (Ordovician of the United States)
Also known as 63ACa1721
Where: Alaska (65.2° N, 141.3° W: paleocoordinates 12.6° N, 56.7° W)
When: Lower Road River Formation, Llanvirn (468.0 - 458.4 Ma)
• 4 feet above 1004-CO.
Environment/lithology: offshore; lithified, cherty/siliceous shale
Size class: macrofossils
Collected by Churkin in 1963
Primary reference: M. Churkin, Jr. and E. E. Brabb. 1965. Ordovician, Silurian, and Devonian biostratigraphy of east-central Alaska. Bulletin of the American Association of Petroleum Geologists 49(2):172-185 [A. Miller/S. Kolbe]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 114859: authorized by Arnold Miller, entered by Sarah Kolbe on 25.08.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Malacostraca | |
|
Caryocaris sp. Salter 1863 | |
| Pterobranchia | |
? Cryptograptus tricornis, Glossograptus sp., "Hallograptus cf. etheridgei" = Paraglossograptus tentaculatus
? Cryptograptus tricornis Carruthers 1859 graptolite
Glossograptus sp. graptolite
"Hallograptus cf. etheridgei" = Paraglossograptus tentaculatus Hall 1858 graptolite | |
|
Isograptus cf. manubriatus graptolite | |
|
Didymograptus sp. McCoy 1851 graptolite | |
|
Glyptograptus sp. Lapworth 1873 graptolite | |
|
Climacograptus sp. Hall 1865 climacograptid | |