M1023-CO Tatonduk River section (Ordovician of the United States)
Also known as 63ABa3231G
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)
• 5 feet above M1022-CO.
Environment/lithology: offshore; lithified, cherty/siliceous shale
Size class: macrofossils
Collected by Brabb 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 114851: 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 | |
|
Glyptograptus sp. graptolite | |
Pseudoclimacograptus cf. marathonensis, Pseudoclimacograptus scharenbergi, Climacograptus aff. antiquus
Pseudoclimacograptus cf. marathonensis climacograptid
Pseudoclimacograptus scharenbergi Lapworth 1976 climacograptid
Climacograptus aff. antiquus climacograptid | |
|
Corynoides tricornis Ruedemann 1947 graptolite
Amplexograptus cf. confertus graptolite
Diplograptus sp. graptolite | |
|
Isograptus sp. Moberg 1892 graptolite | |
|
? Cryptograptus tricornis Carruthers 1859 graptolite
Glossograptus sp. graptolite | |
|
Didymograptus serratulus graptolite
Didymograptus sp. McCoy 1851 graptolite | |
| Malacostraca | |
|
Caryocaris sp. Salter 1863 | |