ammonites
north side, Smoky Hill River, 5 mi W Russell Springs (Cretaceous to of the United States)

Also known as Pteranodon occidentalis/oweni, Pterandon ingens holotypes

Where: Logan County, Kansas (38.9° N, 101.3° W: paleocoordinates 44.4° N, 70.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)

• Specimen probably collected between Marker Units 18 and 20 (Bennett 1991, 1994); upper part of member

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; gray shale

• "gray shale"

Size class: macrofossils

Collected by Marsh in 1870, 1871; reposited in the YPM

Collection methods: quarrying,

Primary reference: O. C. Marsh. 1872. Discovery of additional remains of Pterosauria, with descriptions of two new species. American Journal of Science, Series 3 3:241-248 [R. Butler/R. Butler] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93217: authorized by Richard Butler, entered by Richard Butler on 08.01.2010