Hartless: Lancian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
|
||||||||||
Theatonius lancensis
Fox 1976
|
Gardner and DeMar 2013 | |||||||||
Amphibia
- Temnospondyli
- Batrachosauroididae
|
||||||||||
Opisthotriton kayi
Auffenberg 1961
|
Gardner and DeMar 2013 | |||||||||
Prodesmodon copei
Estes 1964
|
Gardner and DeMar 2013 | |||||||||
Amphibia
- Temnospondyli
- Urodela
|
||||||||||
Habrosaurus dilatus
Gilmore 1928
|
Gardner and DeMar 2013 | |||||||||
Habrosaurus prodilatus
Gardner 2003
|
Gardner and DeMar 2013 | |||||||||
Scapherpetontidae informal indet. 1
(Auffenberg and Goin 1959)
|
Gardner and DeMar 2013 | |||||||||
"gen. et sp. nov. 1" | ||||||||||
Scapherpetontidae informal indet. 2
(Auffenberg and Goin 1959)
|
Gardner and DeMar 2013 | |||||||||
"gen. et sp. nov. 2" | ||||||||||
Scapherpeton tectum
Cope 1876
|
Gardner and DeMar 2013 | |||||||||
Lisserpeton bairdi
Estes 1965
|
Gardner and DeMar 2013 | |||||||||
Piceoerpeton naylori
Gardner 2012
|
Gardner and DeMar 2013 | |||||||||
Paranecturus garbanii n. gen., n. sp.
DeMar 2013
|
3 specimens | |||||||||
Holotype: UWBM93370 (Figs. 2, 3), incomplete atlas missing neural arch roof, crest, and spine, anterior portion of odontoid process, and portions of the anterior and posterior cotylar rims; plus MOR V99230, V99369 | ||||||||||
Amphibia
- Temnospondyli
- Albanerpetontidae
|
||||||||||
Albanerpeton nexuosum
(Estes 1981)
|
Gardner and DeMar 2013 | |||||||||
original and current combination Albanerpeton nexuosus | ||||||||||
Albanerpeton galaktion
Fox and Naylor 1982
|
Gardner and DeMar 2013 | |||||||||
Reptilia
- Testudines
|
||||||||||
Derrisemys sterea
Hutchison 2009
|
Hutchison 2009 | |||||||||
recombined as Hutchemys sterea | ||||||||||
Actinopteri
|
||||||||||
Teleostei informal indet. U-4
(Müller 1846)
|
Brinkman et al. 2021 | 12 specimens | ||||||||
UWBM 98189, abdominal centra; UWBM 106484, one abdominal centrum | ||||||||||
Osteoglossomorpha indet.
Greenwood et al. 1966
|
Brinkman et al. 2021 | 47 specimens | ||||||||
= Coriops/Lopadichthys; UWBM 98115, centra of small size; UWBM 106483, centra of small size; UWBM 106491, centra of small size | ||||||||||
Actinopteri
- Osteoglossiformes
|
||||||||||
? Wilsonichthys sp.
Murray et al. 2016
|
Brinkman et al. 2021 | 9 specimens | ||||||||
UWBM 106485, centra type BvE; UWBM 98094, centrum type BvA | ||||||||||
Wilsonichthys aridinsulensis
Murray et al. 2016
|
Brinkman et al. 2021 | 39 specimens | ||||||||
Actinopteri
- Hiodontiformes
- Hiodontidae
|
||||||||||
Hiodontidae informal indet. small morph
|
Brinkman et al. 2021 | 6 specimens | ||||||||
UWBM 98060, centra of small size | ||||||||||
Actinopteri
- Esociformes
- Esocidae
|
||||||||||
Estesesox sp.
Wilson et al. 1992
|
Brinkman et al. 2021 | 74 specimens | ||||||||
UWBM 98177, centrum type NvC; UWBM 106582, centrum types NvC and NvE; UWBM 98107, centrum type NvD; UWBM 98158, centrum type NvE | ||||||||||
Actinopteri
|
||||||||||
Acanthomorpha informal indet. HC-1
(Rosen 1973)
|
Brinkman et al. 2021 | 68 specimens | ||||||||
spelled with current rank as Acanthomorphata | ||||||||||
UWBM 98195, centra | ||||||||||
Acanthomorpha informal indet. HC-2
(Rosen 1973)
|
Brinkman et al. 2021 | 17 specimens | ||||||||
spelled with current rank as Acanthomorphata | ||||||||||
UWBM 98154, abdominal centra; UWBM 106490, one abdominal centrum | ||||||||||
Acanthomorpha informal indet. HC-4
(Rosen 1973)
|
Brinkman et al. 2021 | 2 specimens | ||||||||
spelled with current rank as Acanthomorphata | ||||||||||
UWBM 98131, abdominal centra | ||||||||||
Acanthomorpha informal indet. HC-6
(Rosen 1973)
|
Brinkman et al. 2021 | 2 specimens | ||||||||
spelled with current rank as Acanthomorphata | ||||||||||
UWBM 98182, abdominal centra | ||||||||||
Actinopteri
- Sciaenidae
|
||||||||||
Platacodon nanus
Marsh 1889
|
Brinkman et al. 2021 | 1 specimen | ||||||||
UWBM 100991, tooth | ||||||||||
Actinopteri
|
||||||||||
Otophysi informal indet. U-3/BvD
|
Brinkman et al. 2021 | 7 specimens | ||||||||
corrected as Otophysa | ||||||||||
UWBM 98187, anterior Weberian centrum (type U3); UWBM 106486, (type U3); UWBM 98121, abdominal centra (centrum type BvD); UWBM 106487, an abdominal centrum (centrum type BvD) | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Montana | County: | Garfield |
Coordinates: | 47.3° North, 107.1° West (view map) | ||||
Paleocoordinates: | 54.1° North, 80.4° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Lancian | ||
Age range of interval: | 70.60000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Hell Creek | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Approximately 41.2 m below the Hell Creek–Tullock formational contact |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UWBM |
Metadata
Also known as: | UCMP V82022; UCMP V-82022; UWBM C1153 | ||
Database number: | 144499 | ||
Authorizer: | P. Mannion, M. Carrano, P. Holroyd, R. Benson | Enterer: | P. Mannion, M. Carrano, P. Holroyd, R. Benson |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2013-05-08 19:59:50 | Last modified: | 2023-08-11 16:18:41 |
Access level: | the public | Released: | 2013-05-08 19:59:50 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
46719. | D. G. DeMar, Jr. 2013. A new fossil salamander (Caudata, Proteidae) from the Upper Cretaceous (Maastrichtian) Hell Creek Formation, Montana, U.S.A. Journal of Vertebrate Paleontology 33(3):588-598 [P. Mannion/P. Mannion/P. Holroyd] |
Secondary references:
85648 | D. B. Brinkman, J. D. Divay, D. G. DeMar and G. P. Wilson Mantilla. 2021. A systematic reappraisal and quantitative study of the nonmarine teleost fishes from the late Maastrichtian of the Western Interior of North America: evidence from vertebrate microfossil localities. Canadian Journal of Earth Sciences 58(9):936-967 [M. Carrano/M. Carrano] | |
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] | |
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] | |
46720 | X. R. Wang, Q. Ji, F. F. Teng and K. M. Jin. 2013. A new species of Yanornis (Aves: Ornithurae) from the Lower Cretaceous strata of Yixian, Liaoning Province. Geological bulletin of China 32(4):601-606 [R. Benson/R. Benson/R. Benson] |