Stumpf Site (Level C) (Cretaceous of the United States)

Where: Morton County, North Dakota (46.9° N, 101.5° W: paleocoordinates 52.6° N, 74.4° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Breien Member (Hell Creek Formation), Lancian (70.6 - 66.0 Ma)

• 3 m above base at site

• bed-level stratigraphic resolution

Environment/lithology: coastal; sandstone

• "1-meter-thick, fossil-bearing marine sandstone... shoreline sandstones"

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by J. Hoganson

Collection methods: surface (float), surface (in situ),

Primary reference: J. W. Hoganson, J. M. Campbell, and E. C. Murphy. 1994. Stratigraphy and paleontology of the Cretaceous Hell Creek Formation, Stumpf site, Morton County, North Dakota. Proceedings of the North Dakota Academy of Sciences 48:95 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 53234: authorized by John Alroy, entered by John Alroy on 07.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Inoceramidae
? Inoceramus sp. Sowerby 1814 clam
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Mytilida - Mytilidae
Chondrichthyes
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus Cope 1876 whiptail stingray
 Lamniformes - Odontaspididae
Carcharias sp. Rafinesque 1810 sand shark
 Euselachii - Mitsukurinidae
? Scapanorhynchus sp. Woodward 1889 goblin shark
  - Edaphodontidae
Elasmodus sp. Egerton chimaera
 Chimaeriformes - Callorhynchidae
Ischyodus sp. Egerton 1843 plownose chimaera
Actinopteri
 Salmoniformes - Enchodontidae
Enchodus sp. Agassiz 1843
Reptilia
 Loricata -
Crocodylia indet. crocodilian
 Ichnofossils -
Ophiomorpha sp. Lundgren 1891