12 miles north of Morrin (70 ft level): Late Campanian - Early Maastrichtian, Canada
collected by G. Paterson & C. M. Sternberg 1924
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Ceratopsidae
|
||||||||||
| 1 individual | ||||||||||
| NMC 8535 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Alberta |
| Coordinates: | 51.8° North, 112.8° West (view map) | ||
| Paleocoordinates: | 62.8° North, 66.4° West (Wright 2013) | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Campanian - Maastrichtian | 10 m.y. bin: | Cretaceous 7 - Cretaceous 8 |
| *Period: | Late/Upper Cretaceous | ||
| *International age/stage: | Campanian | ||
| Key time interval: | Late Campanian - Early Maastrichtian | ||
| Age range of interval: | 83.6 - 66 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Edmonton | Formation: | Horseshoe Canyon |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | ferruginous sandy claystone |
| Includes fossils? | Y |
| Lithology description: "The stratum is a sandy clay with much clay ironstone in which many of the bones are preserved. It is below the oyster bed which is to be found throughout most of the region." | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Disassociated major elements: | all |
| Fragmentation: | occasional |
| Encrustation: | none |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection,observed (not collected) | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | G. Paterson & C. M. Sternberg | Collection dates: | 1924 |
| Collection method comments: Sternberg describes a wider collection: "Besides the specimen here described and those collected by Brown, the writer is aware of two skulls and one skeleton which have been collected from this horizon, and two skeletons, too poorly preserved to collect, and numerous disarticulated bones were observed. Most of these specimens are probably referable to A. ornatus." All are included here except for those collected by Brown. | |||
Metadata
| Also known as: | A. longirostris type | ||
| Database number: | 28548 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2003-02-19 09:20:46 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-02-19 09:20:46 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 7884. | C. M. Sternberg. 1929. A new species of horned dinosaur from the Upper Cretaceous of Alberta. National Museum of Canada Bulletin 54:34-37 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 12314 | ETE | R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 [M. Carrano/M. Carrano/M. Carrano] |
| 62727 | L. S. Russell. 1966. Dinosaur hunting in western Canada. Royal Ontario Museum, Life Sciences Contribution 70:1-37 [M. Carrano/M. Carrano] | |
| 52782 | M. J. Ryan and A. P. Russell. 2001. Dinosaurs of Alberta (exclusive of Aves). In D. H. Tanke & K. Carpenter (ed.), Mesozoic Vertebrate Life 279-298 [M. Carrano/M. Carrano] |