Also known as M1173

Where: Aleutians East County, Alaska (55.5° N, 161.0° W: paleocoordinates 58.7° N, 154.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Stepovak Formation (Beaver Bay Group), Oligocene (33.9 - 23.0 Ma)

• These exposures were examined along the west shore of Beaver Bay from near the mouth of the Beaver River to McGinty Point. Except for the upper few hundred feet the rocks are all part of the Oligocene Stepovak Formation. The formation is at least 15,00 ft thick in this area and is underlain by up to 5000 ft of the Eocene of Tolstoi Formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; green sandstone and conglomerate

Size class: macrofossils

Collection methods: quarrying,

• Collections examined by F.S. MacNeil and D. Taylor (USGS), 1962. Collections are reposited at USGS Menlo Park, or presumably USNM (not reported)

Primary reference: C.A. Burk. 1965. Geology of the Alaska Peninsula-island arc and continental margin (Part 1). Geological Society of America Memoir 99(1) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44082: authorized by Austin Hendy, entered by Austin Hendy on 31.08.2004

Creative Commons license: CC BY (attribution)