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
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 | |
Mammalia | |
Desmostylia indet. Reinhart 1953 desmostylian | |
Thecostraca | |
Balanus cf. nubilus Darwin 1854 barnacle
Balanus cf. crenatus Bruguière 1789 barnacle
Chirona alaskana n. sp. barnacle |