USGS-74Acd29 (Ungalikthluk) (Cretaceous of the United States)
Where: Alaska (59.3° N, 159.8° W: paleocoordinates 48.5° N, 97.4° W)
When: Ungalikthluk Belt Formation, Valanginian (140.2 - 136.4 Ma)
Environment/lithology: limestone and conglomerate
• The Ungalikthluk Belt consists of isolated synclinal outcrop areas of limestone, greenish limy grit, and conglomerate overlain by noncalcareous greywacke and grit.
Reposited in the USGS
Primary reference: J. M. Hoare and W. L. Coonrad. 1983. Greywacke of Buchia Ridge and Correlative Lower Cretaceous Rocks in the Goodnews Bay and Bethel Quadrangles, Southwestern Alaska. U.S. Geological Survey Bulletin 1529-C C1-C17 [M. Patzkowsky/K. Layou/A. Clement] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 2391: authorized by Mark Patzkowsky, entered by Karen Layou on 02.07.1999