Gordon-Bramson-Brothers Quarry (MWC): Kimmeridgian, Colorado
collected by Mike Gordon & Museum of Western Colorado 2009–2013
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Haplocanthosaurus sp.
Hatcher 1903
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| MWC 8028 (fragmentary partial skeleton consisting of four dorsal centra, five partial ribs, the sacrum, five caudal vertebrae, three chevrons, five partial neural spines and many fragments) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Pitkin |
| Coordinates: | 39.2° North, 106.9° West (view map) | ||||
| Paleocoordinates: | 34.3° North, 52.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Late Jurassic |
| Stage: | Kimmeridgian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Kimmeridgian | ||
| Age range of interval: | 154.8 - 149.2 m.y. ago |
Stratigraphy
| Formation: | Morrison | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: In the lower Morrison Formation, approximately 24.5 m above the base of the Morrison Formation. Locally, the Morrison is approximately 90 m thick. This stratigraphic level, approximately 27% of the way up into the local Morrison section, is approximately equivalent to the middle Salt Wash Member of the Colorado Plateau | |||||
Lithology and environment
| Primary lithology: | gray,green mudstone |
| Secondary lithology: | gray siltstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: gray-green indurated mudstone and light gray siltstone | |
| Environment: | fluvial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | Mike Gordon & Museum of Western Colorado | Collection dates: | 2009–2013 |
| Collection method comments: Jul–Sep 2009 through to the summer of 2013 | |||
Metadata
| Also known as: | Snowmass | ||
| Database number: | 164787 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2014-12-16 10:32:44 | Last modified: | 2016-03-11 13:50:30 |
| Access level: | the public | Released: | 2014-12-16 10:32:44 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 53857. | J. R. Foster and M. J. Wedel. 2014. Haplocanthosaurus (Saurischia: Sauropoda) from the lower Morrison Formation (Upper Jurassic) near Snowmass, Colorado. Volumina Jurassica 12(2):197-210 [P. Mannion/P. Mannion/M. Carrano] |