Where: Wallace County, Kansas (38.9° N, 101.8° W: paleocoordinates 41.3° N, 67.7° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Smoky Hill Chalk Member (Niobrara Formation), Coniacian (89.8 - 86.3 Ma)
• based on "Coniacian" age of the Smoky Hill Member
• bed-level stratigraphic resolution
Environment/lithology: offshore; chalk
Size class: macrofossils
Reposited in the YPM
Primary reference: L. D. Martin and J. Tate, Jr. 1976. The skeleton of Baptornis advenus (Aves: Hesperornithiformes). Smithsonian Contributions to Paleobiology 27:35-66 [J. Alroy/J. Alroy/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 85282: authorized by John Alroy, entered by John Alroy on 09.12.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Aves | |
Baptornis advenus n. gen. n. sp.
Baptornis advenus n. gen. n. sp. Marsh 1877 bird |