Also known as USGS M6590
Where: Kodiak County, Alaska (56.5° N, 154.3° W: paleocoordinates 57.8° N, 150.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Narrow Cape Formation, Early/Lower Miocene to Early/Lower Miocene (23.0 - 11.6 Ma)
• Narrow Cape Formation. Late Oligocene or early Miocene age. Overlies Early Oligocene Sitkinak Formation. Total thickness of formation about 210 m
• bed-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, concretionary, pebbly siltstone
Size class: macrofossils
Preservation: concretion
Reposited in the USNM
Collection methods: quarrying,
• Collections housed in USGS, Menlo Park; University of Alaska, and USNM
Primary reference: R. C. Allison and L. Marincovich. 1981. A late Oligocene or earliest Miocene molluscan fauna from Sitkinak Island, Alaska. United States Geological Survey Professional Paper 1233:1-11 [A. Miller/A. Hendy/M. Krause]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37633: authorized by Austin Hendy, entered by Austin Hendy on 18.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list