Cape Aliaksin (Miocene of the United States)

Also known as USGS M7148, 47-WL-77 (Lyle et al., 1979 pl. 10); also USGS M1340

Where: Alaska (55.5° N, 160.8° W: paleocoordinates 57.1° N, 157.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Unga Conglomerate Member (Bear Lake Formation), Langhian (16.0 - 13.8 Ma)

• Collection is from 68 m above base of section; age based on molluscs and K-Ar dates from overlying unit

Environment/lithology: coastal; conglomerate

• High-energy, nearshore depositional environment

Size class: macrofossils

Preservation: original phosphate

Reposited in the USGS

Primary reference: V. A. Zullo, and L. Marincovich, Jr. 1990. Balanoid barnacles from the Miocene of the Alaska Peninsula, and their relevance to the extant boreal barnacle fauna. Journal of Paleontology 64:128-135 [J. Alroy/J. Wertheim/J. Wertheim]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37337: authorized by John Alroy, entered by Jill Wertheim on 12.03.2004, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Maxillopoda
 Sessilia - Archaeobalanidae
Chirona alaskana n. sp. barnacle
 Sessilia - Balanidae
Balanus cf. nubilus Darwin 1854 barnacle
Balanus cf. crenatus Bruguière 1789 barnacle
Mammalia
 Perissodactyla -
Desmostylia indet. Reinhart 1953 desmostylian