Where: Alaska (57.3° N, 156.4° W: paleocoordinates 27.2° N, 87.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Kialagvik Formation, Discites (171.6 - 167.7 Ma)
• E. amplectens zonule: about 8 m massive subgreywacke, highly fossiliferous especially at 2.2 to 0.5 m from top; underlain by 3 m mudstone and siltstone, fossiliferous especially at top and near base; overlain by several meters of crumbly shale indicating fault zone.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified sandstone
Size class: macrofossils
Collected by G.E.G. Westermann, P. Hubbard in 1964
• Repository: McMaster University (Hamilton, Ontario, Canada)
Primary reference: G. E. G. Westermann. 1969. The ammonite fauna of the Kialagvik Formation at Wide Bay, Alaska Peninsula. Part II. Sonninia sowerbyi zone (Bajocian). Bulletins of American Paleontology 57:1-226 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 175647: authorized by Matthew Clapham, entered by Matthew Clapham on 24.12.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Partschiceras ellipticum Westermann 1969 ammonite | |
Hebetoxyites aff. hebes Buckman 1924 ammonite | |
cf. Eudmetoceras sp., "Eudmetoceras (Euaptetoceras) amplectens" = Euaptetoceras amplectens
cf. Eudmetoceras sp. ammonite
"Eudmetoceras (Euaptetoceras) amplectens" = Euaptetoceras amplectens Buckman 1889 ammonite | |
Sonninia (Euhoploceras) sp. Buckman 1913 ammonite |