Stumpf Site (Level A): Lancian, North Dakota
collected by J. Hoganson

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Reptilia - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969
Reptilia - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906
Reptilia
Brachychampsa cf. montana Gilmore 1911
Alligatorinae indet. Cuvier 1807
Leidyosuchus sternbergi (Gilmore 1910)
recombined as Borealosuchus sternbergii
Champsosaurus laramiensis Brown 1905
Reptilia - Sauria
Sauria indet. MacCartney 1802
Reptilia - Testudines
Helopanoplia distincta Hay 1908
Reptilia - Testudines - Trionychidae
"Trionyx (Trionyx)"
    = Trionychidae indet. Gray 1825
Alroy 2006
Trionychidae indet. Gray 1825
Aspideretes sp. Hay 1904
"Trionyx (Aspideretes)"
    = Trionychinae indet. Gray 1825
Alroy 2007
Reptilia
Compsemys victa (Leidy 1856)
Mammalia - Multituberculata - Cimolomyidae
Meniscoessus cf. robustus (Marsh 1889)
Actinopteri - Albuliformes - Albulidae
Coriops cf. amnicolus Estes 1969
Actinopteri - Amiiformes - Amiidae
Kindleia fragosa Jordan 1927
recombined as Cyclurus fragosus
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus selachos (Estes 1964)
original and current combination Lonchidion selachos
Gastropoda - Heterostropha - Physidae
Physa sp. Draparnaud 1801
Gastropoda - Viviparidae
Lioplacodes sp. Meek and Hayden 1864
Campeloma acroterion
Bivalvia - Cardiida - Sphaeriidae
Sphaerium sp. Scopoli 1777
Bivalvia - Unionida - Unionidae
Unionidae indet. Rafinesque 1820
see common names

Geography
Country:United States State/province:North Dakota County:Morton
Coordinates: 46.9° North, 101.5° West (view map)
Paleocoordinates:52.6° North, 74.4° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Epoch:Senonian
Key time interval:Lancian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Montana Formation:Hell Creek
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Lithology description: "fluvial sandstones" but shown in a section as a mudstone
Environment:fluvial indet.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils,mesofossils
Disassociated minor elements:many
Collection methods and comments
Collection methods:surface (float),surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Collectors:J. Hoganson
Metadata
Database number:14620
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:M. Carrano Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2016-06-10 12:47:15
Access level:the public Released:2002-05-15 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1921. 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]

Secondary references:

18120 J. Alroy. 2006. Synonymies and reidentifications of North American fossil vertebrates. [J. Alroy/J. Alroy/J. Alroy]
19636 J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy]
59360 J. W. Hoganson. 1994. Stumpf site registered as a North Dakota Natural Area. North Dakota Geological Society Newsletter 21(4):7-10 [M. Carrano/M. Carrano]