Stike's Quarry: Valanginian, Utah
collected by Stike
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Theropoda indet.
(Marsh 1881)
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Reptilia
- Dromaeosauridae
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Utahraptor sp.
Kirkland et al. 1993
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9 individuals | |||||||||
| 3 "yearlings, 5 juveniles, 1 adult | ||||||||||
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Reptilia
- Iguanodontidae
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Iguanodontidae indet.
Bonaparte 1850
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2 specimens | |||||||||
| 1 juvenile, 1 adult | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Grand |
| Coordinates: | 38.8° North, 109.7° West (view map) | ||||
| Paleocoordinates: | 37.2° North, 59.1° West | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 893 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| *Period: | Late/Upper Cretaceous | *Epoch: | Senonian |
| *International age/stage: | Campanian | ||
| Key time interval: | Valanginian | ||
| Age range of interval: | 139.80000 - 132.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Dakota | Formation: | Cedar Mountain | Member: | Yellow Cat |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: upper part of member
The age of the base of the YCM is unknown and estimates range from Berrisian to early Aptian. Britt et al. 2007 suggested a maximum depositional age for the YCM of ~124Ma, but Sames et al. 2010 suggested on the basis of ostracod biostratigraphy the YCM may be as old as Late Berrisian. Hendrix et al. 2015 and Joeckel et al. 2019 supported this with U-Pb dates from detrital zircons, the latter study suggested that the upper YCM is Valanginian. At any rate, the age of the overlying Poison strip member was dated at its base to 119.4Ma, so the YCM is older than this. | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Secondary lithology: | mudstone |
| Includes fossils? | Y |
| Lithology description: "a series of interconnected sandstone masses (“blobs”) that encased unfossiliferous floodplain-derived mudstone beds with carbonate nodules" | |
| Environment: | mire/swamp |
| Geology comments: "a large collapsed dewatering feature formed on the margin of Lake Madsen and thus is the first dinosaur site ever to be attributed to trapping by “quicksand”" | |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | -bonebed |
| Size of fossils: | macrofossils |
| Associated major elements: | all |
| Fragmentation: | frequent |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),field collection |
| Collection size: | 1 individuals |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | TMP |
| Collectors: | Stike |
Metadata
| Also known as: | Utahraptor Ridge, Stikes Quarry | ||
| Database number: | 24894 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2002-08-22 09:01:42 | Last modified: | 2023-06-15 15:23:12 |
| Access level: | the public | Released: | 2002-08-22 09:01:42 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 81455. | J. S. Tweet, V. L. Santucci, T. Connors and J. P. Kenworthy. 2012. Paleontological Resource Inventory and Monitoring: Northern Colorado Plateau Network. National Park Service Technical Report NPS/NCPN/NRTR—2012/585 xii-524 [M. Carrano/M. Carrano] |
Secondary references:
| 85049 | J. I. Kirkland and J. R. Lively. 2023. MTE14 Mesozoic of Utah Field Trip 1-92 [M. Carrano/M. Carrano] | |
| 78389 | J. I. Kirkland, M. B. Suarez, C. A. Suarez and R. K. Hunt-Foster. 2016. The Medial Cretaceous in East-Central Utah—the Cedar Mountain Formation and its Bounding Strata. Society of Vertebrate Paleontology Field Trip Guide 1-117 [M. Carrano/M. Carrano] |