Also known as Parahesperornis referred

Where: Logan County, Kansas (38.9° N, 101.2° W: paleocoordinates 42.3° N, 67.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scaphites hippocrepis ammonoid zone, Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Santonian (85.8 - 83.5 Ma)

• It occurred approximately 2 m above Marker Unit 22 (Hattin, 1982) and about 4.2 m below the contact with the Pierre Shale. The chalk at this level is near the top of the biostratigraphic zone of Hesperornis (Stewart, 1990), within the Scaphites hippocrepis Ammonite Zone (Kauffman, et al., 1993), and is early Campanian in age (82 ma).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by Jerome Bussen in 1990's

Collection methods: surface (in situ)

Primary reference: A. Bell and M. J. Everhart. 2009. A New Specimen of Parahesperornis (Aves: Hesperornithiformes) from the Smoky Hill Chalk (Early Campanian) of Western Kansas. Transactions of the Kansas Academy of Science 112:7-14 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132510: authorized by Philip Mannion, entered by Philip Mannion on 21.08.2012

Creative Commons license: CC BY (attribution)