NDSFC Loc. LO1, Logan County (Sample A1, NDGS L140): Late/Upper Maastrichtian, North Dakota
collected by J. Hoganson, J. Erickson 1995

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
Hoganson et al. 2019 1 specimen
Actinopteri - Aulopiformes - Enchodontidae
Enchodus dirus Leidy 1857
Hoganson et al. 2019 24 specimens
Actinopteri - Siluriformes - Ariidae
Vorhisia vulpes Frizzell 1965
Hoganson et al. 2019 2 specimens
Chondrichthyes - Chimaeriformes
Chimaeriformes indet. Obruchev 1953
2 specimens
ND 95-13
Chondrichthyes - Chimaeriformes - Callorhynchidae
Ischyodus rayhaasi Hoganson and Erickson 2005
1 specimen
ND 95-13.32, R palatine (paratype)
Chondrichthyes - Carcharhiniformes - Triakidae
Palaeogaleus navarroensis Case and Cappetta 1997
Hoganson et al. 2019 1 specimen
Galeorhinus girardoti Herman 1977
Hoganson et al. 2019 1 specimen
Chondrichthyes - Orectolobiformes - Orectolobidae
Cretorectolobus olsoni Case 1978
Hoganson et al. 2019 2 specimens
Chondrichthyes - Lamniformes - Carchariidae
Carcharias samhammeri (Cappetta and Case 1975)
Hoganson et al. 2019 23 specimens
Chondrichthyes - Rajiformes - Ptychotrygonidae
Ptychotrygon winni Case and Cappetta 1997
Hoganson et al. 2019 1 specimen
Chondrichthyes - Rajiformes
Pseudohypolophus mcnultyi (Thurmond 1971)
Hoganson et al. 2019 4 specimens
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus sp. Cope 1876
Hoganson et al. 2019 1 specimen
see common names

Geography
Country:United States State/province:North Dakota County:Logan
Coordinates: 46.5° North, 99.6° West (view map)
Paleocoordinates:51.8° North, 72.6° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Fox Hills
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:fine poorly lithified sandstone
Lithology description: Poorly consolidated fine-grained sandstone
Environment:paralic indet.
Geology comments: Shoreline sandstone. Contained tidal-flat marine invertebrates, estuarine invertebrates such as oysters, an occasional freshwater snail (Physa sp.), as well as a mix of vertebrates from multiple habitats.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:bulk,sieve
Reason for describing collection:paleoecologic analysis
Collectors:J. Hoganson, J. Erickson Collection dates:1995
Collection method comments: Repository: North Dakota State Fossil Collection at the North Dakota Heritage Center (State Museum)
Metadata
Database number:213583
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:vertebrate
Created:2020-09-06 10:31:47 Last modified:2020-09-06 13:56:13
Access level:the public Released:2020-09-06 10:31:47
Creative Commons license:CC BY
Reference information

Primary reference:
59359. J. W. Hoganson and J. M. Erickson. 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 [M. Carrano/M. Carrano]

Secondary references:

73762 J. W. Hoganson, J. M. Erickson, and F. D. Holland. 2019. Chondrichthyan and osteichthyan paleofaunas from the Cretaceous (Late Maastrichtian) Fox Hills Formation of North Dakota, USA: paleoecology, paleogeography, and extinction. Bulletins of American Paleontology 398:1-94 [M. Clapham/M. Clapham/M. Clapham]