Blacktail Creek, MOR TM-066: Campanian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Ankylosauridae
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Ankylosauridae indet.
Brown 1908
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Database 2006 | 1 specimen | ||||||||
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Reptilia
- Hadrosauridae
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Hypacrosaurus stebingeri
Horner and Currie 1994
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5 specimens | |||||||||
| MOR 548 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Glacier |
| Coordinates: | 48.6° North, 113.8° West (view map) | ||||
| Paleocoordinates: | 56.5° North, 79.1° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Montana | Formation: | Two Medicine | Member: | Upper |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Found in the uppermost 100 m of the 650 m thick formation. | |||||
Lithology and environment
| Primary lithology: | gray,green mudstone |
| Secondary lithology: | fine siltstone |
| Includes fossils? | Y |
| Lithology description: "greenish-grey mudstones"; "Bones were preserved in a fine-grained siltstone, interpreted as a small rivulet that had transected a nesting ground. The siltstone layer was sandwiched between layers of mud rock." | |
| Environment: | fine channel fill |
Taphonomy
| Modes of preservation: | body,soft parts |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils |
| Spatial orientation: | random |
| Abundance in sediment: | abundant |
| Articulated whole bodies: | none |
| Associated major elements: | some |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float),surface (in situ),field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: Eggs with embryos, eggshells and disarticulated skeletal remains. | |
Metadata
| Database number: | 53048 | ||
| Authorizer: | M. Carrano | Enterer: | K. Maguire, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-09-01 16:19:04 | Last modified: | 2023-04-20 10:44:04 |
| Access level: | the public | Released: | 2005-09-01 16:19:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12559. | ETE | J. R. Horner and P. J. Currie. 1994. Embryonic and neonatal morphology and ontogeny of a new species of Hypacrosaurus (Ornithischia, Lambeosauridae) from Montana and Alberta. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge 312-336 [A. Behrensmeyer/M. Carrano/M. Carrano] |
Secondary references:
| 45731 | A. M. Bailleul, B. K. Hall, and J. R. Horner. 2013. Secondary cartilage revealed in a non-avian dinosaur embryo. PLoS ONE 8(2):e56937:1-5 [M. Carrano/M. Carrano] | |
| 84521 | A. M. Bailleul, W. Zheng, J. R. Horner, B. K. Hall, C. M. Holliday and M. H. Schweitzer. 2020. Evidence of proteins, chromosomes and chemical markers of DNA in exceptionally preserved dinosaur cartilage. National Science Review 7(4):815-822 [M. Carrano/M. Carrano] | |
| 17718 | ETE | M. O. R. Database. 2006. MOR collections database. [M. Carrano/M. Carrano/M. Carrano] |
| 14331 | ETE | J. R. Horner. 1994. Comparative taphonomy of some dinosaur and extant bird colonial nesting grounds. K. Carpenter, K.F. Hirsch & J.R. Horner (eds.) Dinosaur Eggs and Babies. Cambridge University Press, Cambridge 116-123 [M. Carrano/K. Maguire/M. Carrano] |
| 62077 | R. R. Rogers. 1997. Two Medicine Formation. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 760-765 [M. Carrano/M. Carrano] |