San Juan River, Farmington: Late Campanian, New Mexico
collected by J. B. Reeside
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Reptilia
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| Country: | United States |
State/province: | New Mexico |
County: | San Juan |
| Coordinates: |
36.7° North, 108.2° West (view map) |
| Paleocoordinates: | 47.0° North, 71.0° West (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | small collection |
| Period: | Cretaceous |
Epoch: | Late Cretaceous |
| Stage: | Campanian |
10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late Campanian |
| Age range of interval: | 83.6 - 72.2 m.y. ago |
| Formation: | Kirtland |
Member: | De-na-zin |
| Stratigraphic resolution: | bed |
| Stratigraphy comments: "upper shale member"; "dinosaur bone from horizon near top of unit" |
| Primary lithology: | yellow "shale" |
| Secondary lithology: | concretionary,gray "shale" |
| Lithology description: "Shale, yellowish, sandy, stained with limonite in irrelgular patches, and gray to drab shale, with platy dark-brown concretions 1 foot or less in diameter, alternating irregularly" |
| Environment: | terrestrial indet. |
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Collectors: | J. B. Reeside |
| Database number: | 179270 |
| Authorizer: | M. Carrano |
Enterer: | M. Carrano |
| Research group: | vertebrate |
| Created: | 2016-06-09 12:47:51 |
Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public |
Released: | 2016-06-09 12:47:51 |
| Creative Commons license: | CC0 |
| 2853. | | J. B. Reeside, Jr. 1924. Upper Cretaceous and Tertiary formations of the western part of the San Juan Basin of Colorado and New Mexico. United States Geological Survey Professional Paper 134:1-70 [J. Alroy/J. Alroy/M. Carrano] |