ammonites
Syndyoceras Quarry ( of the United States)

Also known as Syndyoceras Hill

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.3° N, 98.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Harrison Formation, Harrisonian (24.8 - 20.4 Ma)

Environment/lithology: terrestrial

Primary reference: M. S. Stevens. 1991. Journal of Vertebrate Paleontology 11(1) [J. Alroy/J. Alroy] more details

PaleoDB collection 17846: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)