Engdahl Ranch (LACM): Maastrichtian, Montana
collected by MacDonald 1967-1969
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Tyrannosauridae
|
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|
Tyrannosaurus rex
Osborn 1905
|
Molnar 1980 | 1 specimen | ||||||||
| LACM 23844 | ||||||||||
|
Albertosaurus cf. lancensis
(Gilmore 1946)
|
Molnar 1980 | 1 individual | ||||||||
| LACM 23845 (1 measurement) | ||||||||||
|
= Albertosaurus megagracilis n. sp.
Paul 1988
|
Paul 1988 | |||||||||
| synonym of Tyrannosaurus rex | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Garfield |
| Coordinates: | 47.5° North, 107.1° West (view map) | ||||
| Paleocoordinates: | 54.5° North, 79.6° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 853 meters | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Hell Creek |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | all |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | LACM | ||
| Collectors: | MacDonald | Collection dates: | 1967-1969 |
Metadata
| Also known as: | Jordan | ||
| Database number: | 60766 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2006-05-22 13:53:43 | Last modified: | 2018-01-30 13:52:59 |
| Access level: | the public | Released: | 2006-05-22 13:53:43 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 64603. | A. R. Tabrum. 1970. Comments on new tyrannosaurid material from Montana. 1970 Meeting of the Southern California Academy of Sciences. Bulletin of the Southern California Paleontological Society 2(6):6 [M. Carrano/M. Carrano] |
Secondary references:
| 15218 | ETE | T. D. Carr and T. E. Williamson. 2004. Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America. Zoological Journal of the Linnean Society 142:479-523 [M. Carrano/M. Carrano] |
| 17469 | ETE | R. E. Molnar. 1980. An albertosaur from the Hell Creek Formation of Montana. Journal of Paleontology 54(1):102-108 [M. Carrano/M. Carrano] |
| 17477 | ETE | R. E. Molnar. 1991. The cranial morphology of Tyrannosaurus rex. Palaeontographica Abteilung A 217(4-6):137-176 [M. Carrano/M. Carrano] |
| 10350 | G. S. Paul. 1988. Predatory Dinosaurs of the World. Simon & Schuster, New York 1-464 [M. Carrano/M. Carrano/M. Carrano] |