MRNA Tracksite: Late/Upper Campanian, Canada
collected 2007
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Hadrosauridae
|
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Hadrosauridae indet.
Cope 1869
|
1 individual | |||||||||
| One trackway with 8 tracks | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Alberta |
| Coordinates: | 49.1° North, 110.7° West (view map) | ||
| Paleocoordinates: | 56.3° North, 76.3° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Belly River | Formation: | Oldman | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: in the upper member of the formation, ca. 25 m above the top of the Comrey Sandstone | |||||
Lithology and environment
| Primary lithology: | green mudstone |
| Secondary lithology: | paleosol/pedogenic,gray sandy siltstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "The Oldman Formation of southernmost Alberta is over 160 m thick and consists of interbedded sandstones, siltstones, and mudstones" "The hadrosaur tracks occur at the surface of a thick, drab mudstone and are hosted within a light gray siltstone." "Strata exposed in the study area consist of interbedded mudstones, siltstones, and cross-stratified to laminated sandstones." "The tracks are exposed atop a drab green, structureless mudstone unit; however, their host sediment is a thin, light gray, sandy siltstone layer that immediately overlies this mudstone." | |
| Environment: | fluvial indet. |
| Geology comments: "deposited in an ephemeral, low-sinuosity fluvial setting." | |
Taphonomy
| Modes of preservation: | cast,mold/impression,trace,concretion |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),observed (not collected) |
| Reason for describing collection: | general faunal/floral analysis | Collection dates: | 2007 |
Metadata
| Also known as: | Milk River | ||
| Database number: | 168226 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2015-04-17 12:42:05 | Last modified: | 2016-02-02 15:46:26 |
| Access level: | the public | Released: | 2015-04-17 12:42:05 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 55083. | F. Therrien, D. K. Zelenitsky, K. Tanaka and W. J. Sloboda. 2014. First hadrosaur trackway from the Upper Cretaceous (late Campanian) Oldman Formation, southeastern Alberta. In D. A. Eberth & D. C. Evans (ed.), Hadrosaurs 532-539 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 57884 | F. Therrien, D. K. Zelenitsky, A. Quinney and K. Tanaka. 2015. Dinosaur trackways from the Upper Cretaceous Oldman and Dinosaur Park formations (Belly River Group) of southern Alberta, Canada, reveal novel ichnofossil preservation style. Canadian Journal of Earth Sciences 52:630-641 [M. Carrano/M. Carrano] |