Where: Logan County County, Kansas (39.0° N, 101.2° W: paleocoordinates 42.0° N, 67.4° W)
When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.6 Ma)
• Niobrara Chalk. Member unknown, but most probably Smoky Hill Chalk
• bed-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collected by H. A. Brous & B. F. Mudge in 1875; reposited in the YPM
Collection methods: quarrying
Primary reference: G. W. Storrs. 1999. An examination of Plesiosauria (Diapsida: Sauropterygia) from the Niobrara Chalk (Upper Cretaceous) of Central North America. Paleontological Contributions of the University of Kansas 11:1-15 [R. Benson/R. Benson]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 118879: authorized by Roger Benson, entered by Roger Benson on 17.10.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Polycotylus dolichopus n. sp." = Polycotylus latipinnis
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