U.S. highway 81 roadcut, south of Concordia (FHSM 1331, T. willistoni type): Late/Upper Cenomanian, Kansas
collected 1936
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Plesiosauria
- Polycotylidae
|
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Trinacromerum willistoni n. sp.
Riggs 1944
|
1 individual | |||||||||
| synonym of Trinacromerum bentonianum | ||||||||||
| KUVP 1331 (skeleton with skull missing limbs) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Kansas | County: | Cloud |
| Coordinates: | 39.5° North, 97.7° West (view map) | ||||
| Paleocoordinates: | 37.8° North, 60.1° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Late/Upper Cenomanian | ||
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Geological group: | Colorado | Formation: | Greenhorn Limestone | Member: | Hartland Shale |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "the horizon is 10 feet below the Jetmore Chalk member in beds which, farther west of this area, have been classified as the Hartland Shale member, Greenhorn Limestone formation, Cretaceous series." | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | salvage,survey of museum collection |
| Collection size: | 1 individuals |
| Reason for describing collection: | general faunal/floral analysis | Collection dates: | 1936 |
| Collection method comments: discovered by road crew | |
Metadata
| Database number: | 106182 | ||
| Authorizer: | M. Carrano | Enterer: | H. Street |
| Modifier: | R. Benson | Research group: | vertebrate |
| Created: | 2011-03-04 06:55:03 | Last modified: | 2011-09-26 12:11:34 |
| Access level: | the public | Released: | 2011-03-04 06:55:03 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 35391. | E. S. Riggs. 1944. A new polycotylid plesiosaur. The University of Kansas Science Bulletin 30(8):77-87 [M. Carrano/H. Street] |
Secondary references:
| 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] |