LACM Loc. 8059, Río Guatemala: Rupelian, Puerto Rico
collected 2012
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Amphibia
- Temnospondyli
- Eleutherodactylidae
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Eleutherodactylus sp.
Duméril and Bibron 1841
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| LACM 162445, distal end of left humerus | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Puerto Rico |
| Coordinates: | 18.4° North, 67.0° West (view map) |
| Paleocoordinates: | 19.2° North, 60.7° West (Wright 2013) |
| Basis of coordinate: | stated in text |
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Rupelian | ||
| Age range of interval: | 33.9 - 27.3 m.y. ago | ||
| Age estimate: | minimum 29.47 ± 0.3 Ma (Sr isotope) |
Stratigraphy
| Formation: | San Sebastian | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Basal San Sebastian Formation, estimated to be 30.0–29.5 Ma (Early Oligocene). This is based on invertebrate shells from about 80 m stratigraphically above this level that have been strontium-dated as 29.47 ± 0.30 Ma | |||||
Lithology and environment
| Primary lithology: | gray,blue mudstone |
| Includes fossils? | Y |
| Lithology description: bluish grey mudstone | |
| Environment: | deltaic indet. |
| Geology comments: terrestrial to shallow aquatic habitats within coastal deltaic settings | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | LACM | Collection dates: | 2012 |
Metadata
| Database number: | 209088 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2020-04-24 13:14:11 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2020-04-24 13:14:11 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 72182. | D. C. Blackburn, R. M. Keeffe, M. C. Vallejo-Pareja and J. Vélez-Juarbe. 2020. The earliest record of Caribbean frogs: A fossil coquí from Puerto Rico. Biology Letters 16:20190947:1-6 [P. Mannion/P. Mannion/M. Uhen] |