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

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Albuliformes - Albulidae
Coriops cf. amnicolus Estes 1969
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Actinopteri - Amiiformes - Amiidae
Kindleia fragosa Jordan 1927
recombined as Cyclurus fragosus
Amphibia - Temnospondyli - Urodela
Lisserpeton cf. bairdi Estes 1965
Scapherpeton tectum Cope 1876
Mammalia - Alphadontidae
Alphadon sp. Simpson 1927
    = Alphadontidae indet. Marshall et al. 1990
Alroy 2002
Mammalia - Stagodontidae
cf. Didelphodon sp. Marsh 1889
Mammalia - Multituberculata - Cimolomyidae
Meniscoessus cf. robustus (Marsh 1889)
Reptilia - Testudines - Trionychidae
"Trionyx (Trionyx)"
    = Trionychidae indet. Gray 1825
Alroy 2006
Trionychidae indet. Gray 1825
Reptilia - Testudines
Helopanoplia distincta Hay 1908
Reptilia - Baenidae
Baenidae indet. Cope 1882
Reptilia - Sauria
Sauria indet. MacCartney 1802
Reptilia
Champsosaurus laramiensis Brown 1905
Reptilia - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906
Reptilia - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969
Reptilia
Ankylosauria indet. Osborn 1923
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Edmontosaurus annectens (Marsh 1892)
Reptilia
Leidyosuchus sternbergi (Gilmore 1910)
recombined as Borealosuchus sternbergii
Brachychampsa cf. montana Gilmore 1911
Alligatorinae indet. Cuvier 1807
Chondrichthyes - Lamniformes - Carchariidae
Carcharias sp. Rafinesque 1810
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
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: siltstone
Lithology description: "fluvial sandstones" but shown in a section as a siltstone
Environment:fluvial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Disassociated minor elements:many
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Collectors:J. Hoganson
Taxonomic list comments:"several hundred fossils," large majority of which are not mammals
Metadata
Database number:14621
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:M. Carrano Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2022-03-09 11:03:15
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:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
18120 J. Alroy. 2006. Synonymies and reidentifications of North American fossil vertebrates. [J. Alroy/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]
80623 P. V. Ullmann, A. Shaw, R. Nellermoe and K. J. Lacovara. 2017. Taphonomy of the Standing Rock Hadrosaur Site, Corson County, South Dakota. Palaios 32:779-796 [M. Carrano/M. Carrano]