North bank of Kivalina River (Pliocene of the United States)

Where: Northwest Arctic County, Alaska (67.8° N, 164.6° W: paleocoordinates 68.0° N, 164.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Late/Upper Pliocene (3.6 - 2.6 Ma)

• Late Pliocene or early Pleistocene

Environment/lithology: offshore; pebbly, black claystone and silty sandstone

• Probably represents a wave-cut cliff carved during the maximum landward transgression of Chukchi Sea during late Cenozoic time
• Black organic clay, pebbly clay, and silty sand

Size class: macrofossils

Collection methods: quarrying,

• Collected by Hopkins (1959); Identified by F.S. MacNeil. Unknown repository, probably USGS or USNM

Primary reference: F. S. MacNeil. 1967. Cenozoic Pectinids of Alaska, Iceland, and Other Northern Regions. Geological survey professional paper [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187112: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 14.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Representative for mollusca. Foraminifera and ostracoda not entered
Bivalvia
 Pectinida - Pectinoidae
Fortipecten hallae Dall 1921 scallop