Tunasniyoj tracksite: Late Jurassic - Early Cretaceous, Bolivia
collected by S. Apesteguía
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
|
||||||||||
| 1 individual | ||||||||||
| ichnotaxon E | ||||||||||
| 1 individual | ||||||||||
| ichnotaxon C, "basal thyreophoran, perhaps related to the ankylosaur lineage" | ||||||||||
| 1 individual | ||||||||||
| ichnotaxon D | ||||||||||
| 2 individuals | ||||||||||
| ichnotaxa A, B | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Bolivia | State/province: | Chuquisaca | County: | Icla |
| Coordinates: | 19.5° South, 64.8° West (view map) | ||||
| Paleocoordinates: | 20.3° South, 23.8° West (Wright 2013) | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic - Cretaceous | Epoch: | Late Jurassic - Early Cretaceous |
| 10 m.y. bin: | Jurassic 5-6 - Cretaceous 1-4 | ||
| Key time interval: | Late Jurassic - Early Cretaceous | ||
| Age range of interval: | 161.5 - 100.5 m.y. ago |
Stratigraphy
| Formation: | La Puerta |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | red sandstone |
| Includes fossils? | Y |
| Lithology description: "reddish sandstones" | |
| Environment: | terrestrial indet. |
| Geology comments: "fluvial to aeolian" | |
Taphonomy
| Modes of preservation: | mold/impression,trace |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | common |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),observed (not collected) |
| Reason for describing collection: | general faunal/floral analysis |
| Collectors: | S. Apesteguía |
Metadata
| Also known as: | Palmar de Tunasniyoj | ||
| Database number: | 113346 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-07-28 07:28:22 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-07-28 07:28:22 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 36782. | ETE | S. Apesteguía and P. A. Gallina. 2011. Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia. Anais da Academia Brasileira de Ciências 83(1):267-277 [M. Carrano/M. Carrano] |
Secondary references:
| 76345 | M. Suárez Riglos, R. Céspedes Paz, and O. Medina Ramirez. 2019. Ruta de Migracíon de los Dinosaurios en Bolivia [Migration Route of Dinosaurs in Bolivia] 1-104 [M. Carrano/M. Carrano] |