PTRM V86002, East Marmarth: Late Maastrichtian, North Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Amiiformes - Amiidae
28 specimens
Kindleia fragosa Jordan 1927
226 specimens
Actinopteri - Lepisosteiformes - Lepisosteidae
100 specimens
Actinopteri
Teleostei indet. (Müller 1846)
27 specimens
Actinopteri - Aspidorhynchiformes - Aspidorhynchidae
2 specimens
unclassified
1 specimen
Dalla Vecchia et al. 2013
"neither pterosaur nor avian"
Reptilia - Baenidae
Baenidae indet. Cope 1882
1 specimen
1 specimen
Reptilia
1 specimen
Reptilia - Testudines
1 specimen
Reptilia - Testudines - Adocidae
1 specimen
Reptilia - Testudines - Chelydridae
1 specimen
Reptilia - Testudines - Trionychidae
1 specimen
Reptilia - Testudines - Nanhsiungchelyidae
1 specimen
Reptilia - Testudines
1 specimen
Reptilia
143 specimens
124 specimens
Reptilia - Gavialidae
9 specimens
Reptilia - Hadrosauridae
205 specimens
Reptilia
2 specimens
Reptilia - Ceratopsidae
81 specimens
Reptilia
3 specimens
8 specimens
Reptilia - Dromaeosauridae
11 specimens
Reptilia - Hesperornithiformes
Hesperornithiformes indet. Fürbringer 1888
1 specimen
Reptilia - Tyrannosauridae
21 specimens
Reptilia
16 specimens
21 specimens
Mammalia - Multituberculata - Cimolodontidae
1 specimen
Mammalia - Multituberculata - Cimolomyidae
1 specimen
Mammalia
4 specimens
Mammalia - Creodonta
Cimolestes magnus Clemens and Russell 1965
1 specimen
Amphibia - Temnospondyli
Caudata indet. Scopoli 1777
15 specimens
Amphibia - Temnospondyli - Batrachosauroididae
Gardner and DeMar 2013
5 specimens
Amphibia - Temnospondyli - Urodela
Gardner and DeMar 2013
1 specimen
20 specimens
Acipenseriformes - Acipenseridae
3 specimens
Chondrichthyes - Orectolobiformes - Orectolobidae
1 specimen
Chondrichthyes - Rajiformes - Rhinobatidae
80 specimens
Chondrichthyes - Hybodontiformes - Lonchidiidae
9 specimens
see common names

Geography
Country:United States State/province:North Dakota County:Slope
Coordinates: 46.3° North, 103.9° West (view map)
Paleocoordinates:56.4° North, 62.8° West (Wright 2013)
Basis of coordinate:estimated from map
Altitude:853 meters
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
Key time interval: Late Maastrichtian
Age range of interval: 72.2 - 66 m.y. ago
Stratigraphy
Formation:Hell Creek
Local section:East Marmarth Local bed:29.18 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: datum -29.18, K-T section 86148
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:"channel"
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Disassociated major elements:many
Disassociated minor elements:many
Collection methods and comments
Collection methods:bulk,sieve,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:45144
Authorizer:M. Carrano, P. Holroyd, R. Butler Enterer:M. Carrano, R. Butler, P. Holroyd
Modifier:M. Carrano Research group:vertebrate
Created:2004-10-07 13:26:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-10-07 13:26:18
Creative Commons license:CC0
Reference information

Primary reference:
11749.ETE D. A. Pearson, T. Schaefer, K. R. Johnson, D. J. Nichols, and J. P. Hunter. 2002. Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. In J. H. Hartman, J. R. Johnson, and D. J. Nichols (eds.), The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains: An Integrated Continental Record of the End of the Cretaceous, Geological Society of America Special Paper 361:145-167 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

59166 F. M. Dalla Vecchia, V. Riera, J. O. Oms, J. Dinares-Turell, R. Gaete and A. Galobart. 2013. The last pterosaurs: first record from the uppermost Maastrichtian of the Tremp Syncline (northern Spain). Acta Geologica Sinica 87(5):1198-1227 [R. Butler/R. Butler]
65027 J. D. Gardner and D. G. DeMar. 2013. Mesozoic and Palaeocene lissamphibian assemblages of North America: a comprehensive review. Palaeobiodiversity and Palaeoenvironments 93:459-515 [P. Holroyd/P. Holroyd/M. Carrano]
82664 G. Knauss and A. A. Farke. 2002. Comparison of vertebrate microfossil collection methods in the Late Cretaceous Hell Creek Formation of North Dakota: surface collection vs. screen washing. Journal of Vertebrate Paleontology 22(3 (suppl.)):75A [M. Carrano/M. Carrano]