Smoky Hill River (YPM 1190) (Cretaceous to of the United States)

Also known as L&W locality 45

Where: Logan County, Kansas (38.9° N, 101.1° W: paleocoordinates 44.1° N, 68.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Smoky Hill Chalk Member (Niobrara Formation), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; blue shale

• "blue Cretaceous shale"

Size class: macrofossils

Collected by O. C. Marsh in 1871; reposited in the YPM

Collection methods: quarrying, mechanical,

Primary reference: O. C. Marsh. 1872. Notice of a new species of Hadrosaurus. American Journal of Science and Arts 3:301 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28369: authorized by Matthew Carrano, entered by Matthew Carrano on 10.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Neornithischia -
"Hadrosaurus agilis n. sp." = Claosaurus agilis
"Hadrosaurus agilis n. sp." = Claosaurus agilis Marsh 1872 bird foot dinosaur
YPM 1190