D754-CO Tatonduk River section (Ordovician of the United States)
Also known as 60ABa121B
Where: Alaska (65.0° N, 141.2° W: paleocoordinates 14.2° N, 55.7° W)
When: Road River Formation, Caradoc (458.4 - 449.5 Ma)
Environment/lithology: offshore; lithified, cherty/siliceous shale
Size class: macrofossils
Collected by Brabb in 1960
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 114852: 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
| Pterobranchia | |
|
Cryptograptus schaferi Carruthers 1859 graptolite
Glossograptus ? hincksii Hopkinson 1872 graptolite | |
|
Dicellograptus gurleyi graptolite
Dicellograptus cf. smithi graptolite
Dicranograptus ? contortus graptolite | |
|
Climacograptus cf. phyllophorus climacograptid
Climacograptus sp. Hall 1865 climacograptid | |
Orthograptus sp., "Glyptograptus ? teretiusculus" = Hustedograptus teretiusculus
Orthograptus sp. Lapworth 1873 graptolite
"Glyptograptus ? teretiusculus" = Hustedograptus teretiusculus Hisinger 1840 graptolite | |
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Glyptograptus sp. graptolite | |