Where: Alaska (61.5° N, 143.2° W: paleocoordinates 55.3° N, 84.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Kennicott Formation, Early/Lower Albian (112.0 - 109.0 Ma)
• within 200-300 feet at the base of the formation
• group of beds-level stratigraphic resolution
Environment/lithology: marginal marine; gray shale and brown sandstone
Size class: macrofossils
Reposited in the USGS
Primary reference: R. W. Imlay. 1959. New genera of early Cretaceous (Albian) Ammonites from Alaska. Journal of Paleontology 33(1):179-185 [M. Aberhan/M. Aberhan/S. Nurnberg]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 38509: authorized by Martin Aberhan, entered by Sabine Nürnberg on 23.04.2004, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
Aucellina sp. Pompeckj 1901 scallop | |
Cephalopoda | |
Leconteites modestus, "Leconteites deansii" = Leconteites deansi, "Puzosigella spp." = Leconteites, Callizoniceras sp., Kennicottia bifurcata
Leconteites modestus Anderson 1938 ammonite
"Leconteites deansii" = Leconteites deansi Whiteaves 1893 ammonite
"Puzosigella spp." = Leconteites Casey 1954 ammonite
Callizoniceras sp. ammonite
Kennicottia bifurcata Imlay 1959 ammonite | |
Anagaudryceras aurarium Anderson 1938 ammonite | |
Ptychoceras cf. laeve Gabb 1869 ammonite |