Also known as field No. ROC 1113

Where: Alaska (57.7° N, 155.4° W: paleocoordinates 4.6° N, 81.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Upper Member (Kamishak Formation), Norian (228.0 - 208.5 Ma)

• upper member "platy limestone and shale"

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale and lithified limestone

Size class: macrofossils

Preservation: mold/impression

Collected by W. T. Rothwell, Jr. in 1962; reposited in the USGS

Primary reference: N. J. Silberling, J. A. Grant-Mackie, and K. M. Nichols. 1997. The Late Triassic bivalve Monotis in accreted terranes of Alaska. United States Geological Survey Bulletin 2151:1-21 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139026: authorized by George Stanley, entered by Hannah Shepherd on 07.02.2013

Creative Commons license: CC BY (attribution)