3709-CO Benchmark 4085 section (Cambrian of the United States)

Where: Alaska (65.0° N, 141.0° W: paleocoordinates 3.2° N, 69.8° W)

When: Cambrian (541.0 - 485.4 Ma)

Environment/lithology: lithified, conglomeratic limestone

Size class: macrofossils

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 114982: authorized by Arnold Miller, entered by Sarah Kolbe on 26.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Dikelocephalidae
? Briscoia sp. Walcott 1924 trilobite
 Asaphida - Eurekiidae
Tostonia sp. Walcott 1924 trilobite
Artiopoda
 Agnostida - Diplagnostidae
Pseudagnostus sp. Jaekel 1909