La Colonia (LC 30/12): Maastrichtian, Argentina
collected by José O'Gorman 2012
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Plesiosauria
- Polycotylidae
|
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|
Polycotylidae indet.
Williston 1908
|
1 element | |||||||||
| Rib | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Chubut |
| Coordinates: | 43.0° South, 67.6° West (view map) | ||
| Paleocoordinates: | 45.3° South, 56.0° West | ||
| Basis of coordinate: | unpublished field data |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | La Colonia |
Lithology and environment
| Primary lithology: | mudstone |
| Secondary lithology: | claystone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Environment: | estuary/bay |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Spatial orientation: | random |
| Preservation of anatomical detail: | medium |
| Abundance in sediment: | few |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Disassociated major elements: | all |
| Disassociated minor elements: | none |
| Fragmentation: | frequent |
| Bioerosion: | none |
| Encrustation: | none |
Collection methods and comments
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | MEF | ||
| Collectors: | José O'Gorman | Collection dates: | 2012 |
Metadata
| Database number: | 234159 | ||
| Authorizer: | E. Vlachos | Enterer: | F. Aspromonte | Research group: | vertebrate |
| Created: | 2024-03-20 17:49:49 | Last modified: | 2024-03-20 17:49:49 |
| Access level: | database members | Released: | 2029-03-20 17:49:49 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 85586. | D. Pol, E. Vlachos, and F. Aspromonte. 2023. The end of the dinosaur era in Patagonia (NatGeo Project). [E. Vlachos/E. Vlachos/E. Vlachos] |