NW Russell County (FHSM): Middle Cenomanian, Kansas
collected by M. Everhart
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Vertebrata indet.
Lamarck 1801
|
||||||||||
Chondrichthyes
|
||||||||||
Elasmobranchii indet.
(Bonaparte 1838)
|
1 specimen | |||||||||
Chondrichthyes
- Hybodontiformes
- Ptychodontidae
|
||||||||||
Ptychodus occidentalis
Leidy 1868
|
5 specimens | |||||||||
Ptychodus cf. anonymus
Williston 1900
|
2 specimens | |||||||||
Ptychodus decurrens
Agassiz 1838
|
43 specimens | |||||||||
Chondrichthyes
- Rajiformes
- Rhinobatidae
|
||||||||||
Rhinobatos sp.
Link 1790
|
2 specimens | |||||||||
Chondrichthyes
- Lamniformes
|
||||||||||
Lamniformes indet.
Berg 1958
|
3 specimens | |||||||||
Chondrichthyes
- Lamniformes
- Odontaspididae
|
||||||||||
Carcharias tenuiplicatus
(Cappetta and Case 1975)
|
39 specimens | |||||||||
recombined as Eostriatolamia tenuiplicatus | ||||||||||
Carcharias saskatchewanensis
(Case et al. 1990)
|
55 specimens | |||||||||
recombined as Microcarcharias saskatchewanensis | ||||||||||
Chondrichthyes
- Lamniformes
- Cretoxyrhinidae
|
||||||||||
Cretoxyrhina mantelli
(Agassiz 1835)
|
19 specimens | |||||||||
Chondrichthyes
- Lamniformes
- Anacoracidae
|
||||||||||
Squalicorax volgensis
(Glickman 1971)
|
6 specimens | |||||||||
nomen dubium belonging to Squalicorax | ||||||||||
Squalicorax curvatus
(Williston 1900)
|
19 specimens | |||||||||
Squalicorax falcatus
(Agassiz 1843)
|
193 specimens | |||||||||
Chondrichthyes
- Lamniformes
- Haimirichiidae
|
||||||||||
Carcharias amonensis
(Cappetta and Case 1975)
|
1 specimen | |||||||||
recombined as Haimirichia amonensis | ||||||||||
Chondrichthyes
- Lamniformes
- Otodontidae
|
||||||||||
Cretolamna appendiculata
(Agassiz 1835)
|
4 specimens | |||||||||
recombined as Cretalamna appendiculata | ||||||||||
Reptilia
|
||||||||||
Coniasaurus cf. crassidens
Owen 1850
|
5 specimens | |||||||||
FHSM VP-13999-14002, 14778 | ||||||||||
Aves indet.
(Linnaeus 1758)
|
Bell and Everhart 2011 | 2 specimens | ||||||||
FHSM VP-17461 (1 max. frag, 1 mand. frag), 17458 (prox R femur) | ||||||||||
Reptilia
- Ichthyornithes
|
||||||||||
Ichthyornithes indet.
Marsh 1873
|
Bell and Everhart 2011 | 1 specimen | ||||||||
FHSM VP-17459 (prox L coracoid) | ||||||||||
Reptilia
- Hesperornithiformes
- Baptornithidae
|
||||||||||
Baptornithidae indet.
American Ornithologists' Union 1910
|
Everhart and Bell 2009 | 1 specimen | ||||||||
FHSM VP-6318 (proximal and distal portions of the right tarsometatarsus) | ||||||||||
Reptilia
|
||||||||||
Pterodactyloidea indet.
(Plieninger 1901)
|
1 specimen | |||||||||
FHSM VP-13998, distal femur | ||||||||||
Reptilia
- Plesiosauria
|
||||||||||
Plesiosauria indet.
(de Blainville 1835)
|
1 specimen | |||||||||
FHSM VP-14811, tooth | ||||||||||
Reptilia
- Plesiosauria
- Pliosauridae
|
||||||||||
Brachauchenius lucasi
Williston 1903
|
2 specimens | |||||||||
FHSM VP-13997, paddle. FHSM VP-14782, two teeth | ||||||||||
= cf. Brachauchenius lucasi
Williston 1903
|
Bell and Everhart 2011 | |||||||||
Actinopteri
- Pachycormiformes
- Pachycormidae
|
||||||||||
Protosphyraena sp.
Leidy 1857
|
5 specimens | |||||||||
"or Saurodon sp." | ||||||||||
Actinopteri
|
||||||||||
Teleostei indet.
(Müller 1846)
|
213 specimens | |||||||||
Multiple species | ||||||||||
Actinopteri
- Crossognathiformes
- Pachyrhizodontidae
|
||||||||||
Pachyrhizodus minimus
Stewart 1899
|
1 specimen | |||||||||
Actinopteri
- Aulopiformes
- Enchodontidae
|
||||||||||
Enchodus sp.
Agassiz 1835
|
100 specimens | |||||||||
Actinopteri
- Ichthyodectiformes
- Ichthyodectidae
|
||||||||||
? Xiphactinus audax
(Leidy 1870)
|
4 specimens | |||||||||
see common names |
Geography
Country: | United States | State/province: | Kansas | County: | Russell |
Coordinates: | 39.0° North, 98.9° West (view map) | ||||
Paleocoordinates: | 37.6° North, 61.5° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
Key time interval: | Middle Cenomanian | ||
Age range of interval: | 99.60000 - 93.50000 m.y. ago | ||
Age estimate: | 95.53 ± 0.159 Ma (Ar/Ar) |
Stratigraphy
Geological group: | Colorado | Formation: | Greenhorn Limestone | Member: | Lincoln Limestone |
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Argon/argon sample taken from bed 1 metre below fossil horizon.
"The plesiosaur paddle (FHSM VP-13997) was lying at the unconformable contact between the third (uppermost Graneros Shale) and the fourth (lowermost Lincoln Limestone) units described here." Remainder of remains in lowermost Lincoln Limestone |
Lithology and environment
Primary lithology: | sandstone |
Includes fossils? | Y |
Environment: | marginal marine indet. |
Glacial or sequence phase: | transgressive |
Geology comments: "Deposition in turbulent waters slightly over 30 m in depth" |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | concentrated |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | medium |
Abundance in sediment: | common |
Fragmentation: | frequent |
Collection methods and comments
Collection methods: | bulk,selective quarrying,surface (in situ),mechanical,sieve,field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Collectors: | M. Everhart |
Collection method comments: FHSM: Sternberg Museum of Natural History |
Metadata
Database number: | 94538 | ||
Authorizer: | R. Butler, P. Mannion, M. Carrano | Enterer: | R. Butler, M. Carrano, P. Mannion |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2010-02-25 08:24:24 | Last modified: | 2012-02-27 10:41:29 |
Access level: | the public | Released: | 2010-02-25 08:24:24 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
32160. | G. A. Liggett, K. Shimada, S. C. Bennett and B. A. Schumacher. 2005. Cenomanian (Late Cretaceous) reptiles from northwestern Russell County, Kansas. PaleoBios 25:9-17 [R. Butler/R. Butler] |
Secondary references:
40445 | A. Bell and M. J. Everhart. 2011. Remains of small ornithurine birds from a Late Cretaceous (Cenomanian) microsite in Russell County, north-central Kansas. Transactions of the Kansas Academy of Science 114(1-2):115-123 [M. Carrano/M. Carrano] | |
37360 | M. J. Everhart and A. Bell. 2009. A Hesperornithiform Limb Bone from the Basal Greenhorn Formation (Late Cretaceous; Middle Cenomanian) of North Central Kansas. Journal of Vertebrate Paleontology 29(3):952-956 [P. Mannion/P. Mannion] | |
37870 | B. A. Schumacher and M. J. Everhart. 2005. A stratigraphic and taxonomic review of plesiosaurs from the old "Fort Benton Group" of central Kansas: a new assessment of old records. Paludicola 5(2):33-54 [R. Benson/R. Benson/R. Butler] |