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Montana - Hell Creek - Breien, North Dakota, USA

GroupMontana
FormationHell Creek
MemberBreien
Age:70.6 - 66.0 Ma
Late/Upper Cretaceous
IntervalLancian
Lithologysandstone
Number of Collections9
Number of Occurrences22

Recorded Sample Locations

LocationRegionStratigraphic Name
Stumpf Site Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. MO32Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. MO23Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. MO3Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. MO35Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. MO21Morton County, North Dakota, USAMontana - Hell Creek - Breien
NDSFC Loc. EM6Emmons County, North Dakota, USAMontana - Hell Creek - Breien

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Tongue River61.7 - 56.8 Ma
Paleocene		76
Montana - Hell Creek70.6 - 66.0 Ma
Late/Upper Cretaceous		mudstone, siltstone, sandstone, sandstone/mudstone, siltstone/sandstone100

Recorded Fossils

Accepted NameHierarchyAge
Ophiomorpha sp.
genus		6Ophiomorpha70.6 - 66 Ma
Late/Upper Cretaceous
Enchodus sp.
genus		6Animalia : Chordata : Actinopteri : Salmoniformes : Enchodontidae : Enchodus70.6 - 66 Ma
Late/Upper Cretaceous
Chimaeriformes
order		4Animalia : Chordata : Holocephali : Chimaeriformes70.6 - 66 Ma
Late/Upper Cretaceous
Ischyodus sp.
genus		6Animalia : Chordata : Chondrichthyes : Chimaeriformes : Callorhynchidae : Ischyodus70.6 - 66 Ma
Late/Upper Cretaceous
Ischyodus rayhaasi
species		7Animalia : Chordata : Chondrichthyes : Chimaeriformes : Callorhynchidae : Ischyodus : Ischyodus rayhaasi70.6 - 66 Ma
Late/Upper Cretaceous
Elasmodus sp.
genus		6Animalia : Chordata : Chondrichthyes : Holocephali : Edaphodontidae : Elasmodus70.6 - 66 Ma
Late/Upper Cretaceous
Carcharias sp.
genus		6Animalia : Chordata : Elasmobranchii : Lamniformes : Odontaspididae : Carcharias70.6 - 66 Ma
Late/Upper Cretaceous
Myledaphus bipartitus
species		7Animalia : Chordata : Chondrichthyes : Myliobatiformes : Dasyatidae : Myledaphus : Myledaphus bipartitus70.6 - 66 Ma
Late/Upper Cretaceous
Scapanorhynchus sp.
genus		6Animalia : Chordata : Elasmobranchii : Lamniformes : Mitsukurinidae : Scapanorhynchus70.6 - 66 Ma
Late/Upper Cretaceous
Crocodylia
order		4Animalia : Chordata : Reptilia : Crocodylia70.6 - 66 Ma
Late/Upper Cretaceous
Inoceramus sp.
genus		6Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Inoceramus70.6 - 66 Ma
Late/Upper Cretaceous
Modiolus sp.
genus		6Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Modiolus70.6 - 66 Ma
Late/Upper Cretaceous
Crassostrea sp.
genus		6Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : Crassostrea70.6 - 66 Ma
Late/Upper Cretaceous

References

Hoganson J. W., Campbell J. M., et al (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
Hoganson J. W., Erickson J. M. (2005) A new species of Ischyodus (Chondrichthyes: Holocephali: Callorhynchidae) from upper Maastrichtian shallow marine facies of the Fox Hills and Hell Creek formations, Williston Basin, North Dakota, USA, Palaeontology 48 4, 709-721
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
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