Jane Austen tracksite, Como Bluff: Kimmeridgian, Wyoming
collected by P. Redman, R. Bakker 1995
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Moyenisauropodidae
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cf. Anomoepus sp.
Hitchcock 1848
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1 specimen | |||||||||
| "resembles Anomoepus" | ||||||||||
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= ? Anomoepus sp.
Hitchcock 1848
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Foster and Lockley 2006 | |||||||||
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Reptilia
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Sauropoda indet.
Marsh 1878
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6 individuals | |||||||||
| "cf. Brontopodus or cf. Parabrontopodus" | ||||||||||
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Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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28 individuals | |||||||||
| majority of tracks; resemble Grallator | ||||||||||
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Foster and Lockley 2006 | |||||||||
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Polypodiopsida
- Equisetales
- Equisetaceae
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Equisetum sp.
Linnaeus 1753
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Foster and Lockley 2006 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wyoming | County: | Carbon |
| Coordinates: | 41.9° North, 106.0° West (view map) | ||||
| Paleocoordinates: | 36.9° North, 51.3° West | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 6762 feet | ||||
| Geographic resolution: | outcrop |
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 | Member: | Talking Rocks | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: near the base of the Morrison, only a few meters above contact with Sundance. Unit A | |||||
Lithology and environment
| Primary lithology: | burrows,bioturbation,gray "limestone" |
| Secondary lithology: | gray,green claystone |
| Includes fossils? | Y |
| Lithology description: "light grey limestone...The tracks are preserved as natural impressions, on an undulating surface which reveals local algal-stromatolitic and oncolytic features, occasional gastropods, silicified Equisetum stems and cylindrical root or burrow traces." Overlain by claystones/mudstones. | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body,mold/impression,trace |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | many |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),observed (not collected) | ||
| Rock censused: | 600 cm2 (area) | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | P. Redman, R. Bakker | Collection dates: | 1995 |
Metadata
| Also known as: | Rock Creek; Jane Austin; WDIS Quarry 33a | ||
| Database number: | 36270 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2004-01-22 15:04:43 | Last modified: | 2023-08-24 09:25:11 |
| Access level: | the public | Released: | 2004-01-22 15:04:43 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 9738. | B. Southwell, M. G. Lockley, R. T. Bakker, M. Connely, and P. Redman. 1996. The first report of a dinosaur tracksite from the Morrison Formation at Como Bluff. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:133-136 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 85332 | M. V. Connely. 2002. Stratigraphy and Paleoecology of the Morrison Formation, Como Bluff, Wyoming 1-109 [M. Carrano/M. Carrano] | |
| 65404 | J. R. Foster and M. G. Lockley. 2006. The vertebrate ichnological record of the Morrison Formation (Upper Jurassic, North America). In J. R. Foster, S. G. Lucas (eds.), Paleontology and Geology of the Upper Jurassic Morrison Formation. New Mexico Museum of Natural History and Science Bulletin 36:203-216 [M. Carrano/M. Carrano] |