Kent 484: Lancian, Wyoming
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Pediomyidae
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Pediomys florencae n. sp.
Clemens 1966
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Clemens 1966 | |||||||||
| recombined as Protolambda florencae | ||||||||||
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Mammalia
- Stagodontidae
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Didelphodon vorax
Marsh 1889
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Clemens 1966 | |||||||||
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Reptilia
- Testudines
- Trionychidae
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Trionychidae sp.
Gray 1825
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173437 | ||||||||||
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Aspideretes beecheri
Hay 1904
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Estes 1964 | |||||||||
| recombined as Trionyx beecheri | ||||||||||
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Reptilia
- Testudines
- Nanhsiungchelyidae
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Basilemys sp.
Hay 1902
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173434 | ||||||||||
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Reptilia
- Testudines
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Helopanoplia sp.
Hay 1908
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173436 | ||||||||||
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Plastomenine informal A
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173435 | ||||||||||
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= Derrisemys sterea
Hutchison 2009
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Hutchison 2009 | |||||||||
| recombined as Hutchemys sterea | ||||||||||
| UCMP 173435 | ||||||||||
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Reptilia
- Testudines
- Chelydridae
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Chelydridae sp.
Swainson 1839
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173433 | ||||||||||
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Reptilia
- Baenidae
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Baenidae sp.
Cope 1882
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Holroyd and Hutchison 2002 | |||||||||
| Voucher: UCMP 173432 | ||||||||||
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cf. Baena sp.
Leidy 1870
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Estes 1964 | |||||||||
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Reptilia
- Hadrosauridae
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cf. Anatosaurus sp.
Lull and Wright 1942
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Estes 1964 | |||||||||
| synonym of Edmontosaurus | ||||||||||
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Reptilia
- Ceratopsidae
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cf. Triceratops sp.
Marsh 1889
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Estes 1964 | |||||||||
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Reptilia
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Brachychampsa montana
Gilmore 1911
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Estes 1964 | |||||||||
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Leidyosuchus sternbergi
(Gilmore 1910)
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Estes 1964 | |||||||||
| recombined as Borealosuchus sternbergii | ||||||||||
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Amphibia
- Temnospondyli
- Urodela
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Habrosaurus dilatus
Gilmore 1928
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Estes 1964 | 1 specimen | ||||||||
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus occidentalis
(Leidy 1856)
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Estes 1964 | |||||||||
| original and current combination Lepidotus occidentalis | ||||||||||
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Chondrichthyes
- Rajiformes
- Rhinobatidae
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Myledaphus bipartitus
Cope 1876
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Estes 1964 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Niobrara |
| Coordinates: | 43.0° North, 104.5° West (view map) | ||||
| Paleocoordinates: | 49.5° North, 79.4° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
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
| Formation: | Lance |
Lithology and environment
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Museum repositories: | UCMP |
Metadata
| Also known as: | UCMP V-5820 | ||
| Database number: | 14579 | ||
| Authorizer: | J. Alroy, R. Benson, P. Holroyd, M. Carrano | Enterer: | J. Alroy, R. Benson, P. Holroyd, M. Carrano | Research group: | vertebrate |
| Created: | 1994-07-26 00:00:00 | Last modified: | 2002-06-03 03:27:39 |
| Access level: | the public | Released: | 1994-07-26 00:00:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 1239. | W. A. Clemens. 1964. Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia. University of California Publications in Geological Sciences 48:1-105 [J. Alroy/J. Alroy/J. Alroy] |
Secondary references:
| 1241 | W. A. Clemens. 1966. Fossil mammals from the type Lance Formation, Wyoming. Part II. Marsupialia. University of California Publications in Geological Sciences 62:1-122 [J. Alroy/J. Alroy/J. Alroy] | |
| 803 | R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187 [J. Alroy/M. Sommers/M. Carrano] | |
| 42536 | P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 [R. Benson/R. Benson] | |
| 58298 | J. H. Hutchison. 2009. New soft-shelled turtles (Plastomeninae, Trionychidae, Testudines) from the Cretaceous and Paleocene of North America. PaleoBios 29(2):36-47 [P. Holroyd/P. Holroyd] |