TMP NL-4: Early/Lower Maastrichtian, Canada
collected by Brinkman 2003
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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8 specimens | |||||||||
| TMP 2009.139.6 | ||||||||||
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Amphibia
- Temnospondyli
- Urodela
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Scapherpeton sp.
Cope 1876
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9 specimens | |||||||||
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Amphibia
- Temnospondyli
- Batrachosauroididae
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Opisthotriton sp.
Auffenberg 1961
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3 specimens | |||||||||
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Reptilia
- Ankylosauridae
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Ankylosauridae indet.
Brown 1908
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1 specimen | |||||||||
| TMP 2009.139.4 | ||||||||||
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Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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17 specimens | |||||||||
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Reptilia
- Hadrosauridae
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Hypacrosaurus altispinus
Brown 1913
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59 specimens | |||||||||
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Reptilia
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Paronychodon sp.
Cope 1876
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1 specimen | |||||||||
| TMP 2009.139.4 | ||||||||||
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Reptilia
- Troodontidae
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Troodon sp.
Leidy 1856
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5 specimens | |||||||||
| TMP 2003.34.1 | ||||||||||
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Reptilia
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Avialae indet.
Gauthier 1986
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1 specimen | |||||||||
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Reptilia
- Tyrannosauridae
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Tyrannosauridae indet.
Osborn 1906
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1 specimen | |||||||||
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Reptilia
- Testudines
- Chelydridae
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Chelydridae indet.
Swainson 1839
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1 specimen | |||||||||
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Mammalia
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Metatheria indet.
(Huxley 1880)
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1 specimen | |||||||||
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Actinopteri
- Salmoniformes
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Salmoniformes indet.
Bleeker 1859
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1 specimen | |||||||||
| TMP 2009.139.1 | ||||||||||
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Actinopteri
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Holostei informal indet. A
(Müller 1846)
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106 specimens | |||||||||
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Actinopteri
- Amiiformes
- Amiidae
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Cyclurus sp.
Agassiz 1839
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1 specimen | |||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Alberta |
| Coordinates: | 52.0° North, 112.9° West (view map) | ||
| Paleocoordinates: | 59.7° North, 84.4° 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: | Early/Lower Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Edmonton | Formation: | Horseshoe Canyon | Member: | Morrin/Tolman |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: from Drumheller Marine Tongue, Unit 2
Drumheller Marine Tongue section spans Morrin/Tolman contact zone and has been dated to 70.896+/0.048Ma. For revised age stratigraphy of the Horseshoe Canyon Formation, see Eberth and Braman 2012 and Eberth et al. 2020 | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | coastal indet. |
| Geology comments: "brackish water" | |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | concentrated |
| Size of fossils: | mesofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | abundant |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | TMP | ||
| Collectors: | Brinkman | Collection dates: | 2003 |
Metadata
| Database number: | 135739 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2012-11-06 10:47:28 | Last modified: | 2022-03-29 03:52:59 |
| Access level: | the public | Released: | 2012-11-06 10:47:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 43426. | D. W. Larson, D. B. Brinkman, and P. R. Bell. 2010. Faunal assemblages from the upper Horseshoe Canyon Formation, an early Maastrichtian cool-climate assemblage from Alberta, with special reference to the Albertosaurus sarcophagus bonebed. Canadian Journal of Earth Sciences 47:1159-1181 [M. Carrano/M. Carrano] |