Also known as USGS 18349 (#40A M-F33)
Where: Valdez-Cordova County, Alaska (62.4° N, 142.9° W: paleocoordinates 37.2° N, 83.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Late/Upper Jurassic (163.5 - 145.0 Ma)
• Upper Jurassic rocks laid down unconformably on an eroded surface of older rocks. They are deeply eroded, intruded by igneous rocks, and effected strongly by regional faulting. The areal extent of Mesozoic rocks in teh Alaska mountains suggests a thickness exceeding thousands of feet.
• bed-level stratigraphic resolution
Environment/lithology: marine; wackestone and sandstone
Size class: macrofossils
Reposited in the USGS
Collection methods: quarrying,
• Several collections of fossils from the Nutzotin Mountains contain forms that are too poorly preserved for definite determination. Collected by Moffit (1940).
Primary reference: F.H. Moffit. 1954. Geology of the eastern part of the Alaska Range and adjacent area. United States Geological Survey Professional Paper 989(D) [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 41295: authorized by Austin Hendy, entered by Austin Hendy on 11.07.2004
Creative Commons license: CC BY (attribution)