Also known as 61AMc941
Where: Alaska (65.0° N, 141.2° W: paleocoordinates 6.8° N, 66.2° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Hillard Limestone Formation, Dresbachian (497.0 - 485.4 Ma)
• STRATIGRAPHIC RELATIONS: From Hillard Limestone, which regionally overlies the Early Cambrian Adams Argillite and is unconformably overlain by the lower part of the Rhoad River Formation. AGE: Dresbachian on occurence of faunal assemblages similar to that of the Dunderbergia zone of the Great Basin. STRATIGRAPHIC POSITION: At base of 50 ft section, bed of limestone at top of a unit of black siltstone that seems to be locally developed.
• bed-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Reposited in the USNM
• COLLECTOR: J.C. Mclik (1961). REPOSITORY: USGS and USNM.
Primary reference: A.R. Palmer. 1968. Cambrian trilobites of East-Central Alaska. United States Geological Survey Professional Paper 559(B) [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 64798: authorized by Austin Hendy, entered by Austin Hendy on 15.09.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Artiopoda | |
Pseudagnostus sp. Jaekel 1909 | |
Trilobita | |
Olenaspella "evansi" Kobayashi 1936 trilobite | |
Corynexochus plumula Whitehouse 1939 trilobite |