Where: Alaska (57.3° N, 156.4° W: paleocoordinates 27.2° N, 87.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Kialagvik Formation, Discites (171.6 - 167.7 Ma)
• Gray siltstone, about 8 m above a massive sandstone ("probably a little lower than lot 21251")
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, gray siltstone
Size class: macrofossils
Collected by Ralph W. Imlay, Don J. Miller in 1948; reposited in the USNM
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 175623: authorized by Matthew Clapham, entered by Matthew Clapham on 20.12.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Bradfordia (Praeoppelia) oppeliiformis" = Praeoppelia oppeliiformis
"Bradfordia (Praeoppelia) oppeliiformis" = Praeoppelia oppeliiformis Westermann 1969 ammonite | |
"Pseudolioceras fastigatum n. sp." = Tugurites fastigatus
"Pseudolioceras fastigatum n. sp." = Tugurites fastigatus Westermann 1969 ammonite Pseudolioceras maclintocki fastigatum
| |
Holcophylloceras costisparsum Imlay 1964 ammonite |