List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Chirotheriidae
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Chirotherium marshalli
Peabody 1948
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3 specimens | |||||||||
| recombined as Isochirotherium marshalli | ||||||||||
| UCMP 37348-37350 | ||||||||||
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Chirotherium cf. marshalli
Peabody 1948
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1 specimen | |||||||||
| recombined as Isochirotherium marshalli | ||||||||||
| not collected | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Arizona | County: | Navajo |
| Coordinates: | 34.9° North, 110.2° West (view map) | ||||
| Paleocoordinates: | 3.3° North, 38.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 154 meters | ||||
| Geographic resolution: | outcrop |
Stratigraphy
| Formation: | Moenkopi | Member: | Holbrook | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "well above the gypsiferous middle zone of the Moenkopi" and approx. 40 m above contact with Coconino Fm.
Lucas & Schoch (2002: Lethaia 35: 97-106) inferred the Holbrook member to be earliest Anisian (Aegean–Bithynian) in age based upon tetrapod biostratigraphy (Eocyclotosaurus used to correlate Holbrook Member to German Upper Bundsandstein) and magnetostratigraphy | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Environment: | terrestrial indet. |
| Geology comments: "mudflat" | |
Taphonomy
| Modes of preservation: | trace |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Associated major elements: | all |
| Fragmentation: | occasional |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),field collection,observed (not collected) |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UCMP |
| Collectors: | Peabody |
Metadata
| Database number: | 52806 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | R. Butler | Research group: | vertebrate |
| Created: | 2005-08-22 07:21:07 | Last modified: | 2012-10-25 03:30:15 |
| Access level: | the public | Released: | 2005-08-22 07:21:07 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 37010. | F. E. Peabody. 1948. Reptile and amphibian trackways from the Lower Triassic Moenkopi formation of Arizona and Utah. University of California Publications, Bulletin of the Department of Geological Sciences 27(8):295-468 [M. Carrano/M. Carrano] |
Secondary references:
| 43346 | H. Klein and S. G. Lucas. 2010. Review of the tetrapod ichnofauna of the Moenkopi Formation/Group (Early-Middle Triassic) of the American Southwest. New Mexico Museum of Natural History and Science, Bulletin 50:1-67 [R. Butler/R. Butler] |