Gypsum mine, ca. 2 km NE Santana do Cariri: Late/Upper Aptian, Brazil
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Araripemydidae
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Araripemys barretoi n. gen., n. sp.
Price 1973
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1 specimen | |||||||||
| DGM-DNPM 756-R; shell | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | Ceará |
| Coordinates: | 7.2° South, 39.7° West (view map) | ||
| Paleocoordinates: | 8.6° South, 8.0° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late/Upper Aptian | ||
| Age range of interval: | 119.50000 - 113.00000 m.y. ago |
Stratigraphy
| Geological group: | Santana | Formation: | Romualdo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The Romualdo Member of the Santana Formation lies between the Crato Member of the Santana Formation (below) and the Exu Formation, which overlies the Santana Formation. Both of the latter horizons are most likely Albian in age. This suggests an Albian age (early Cretaceous, ± 110 mya) for the Romualdo Member of the Santana Formation and for Araripemys (Maisey, 1990, 1991).
From Melo et al. 2020: In summary, this integrated study of foraminifera, ostracodes and other microfossil data from the Romualdo Formation indicates that the local Alagoas Stage (Ostracoda Zone RT-011) can now be constrained to the Aptian. Arai and Assine 2020 also support that the Romualdo Formation is entirely Aptian in age. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Divisao de Geologia e Mineralogia, Departamento Nacional de Producao Mineral, Rio de Janeiro, DGM-DNPM collection | |
Metadata
| Also known as: | Araripemys barretoi type locality | ||
| Database number: | 128565 | ||
| Authorizer: | R. Benson | Enterer: | R. Benson |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2012-06-11 21:10:19 | Last modified: | 2023-03-13 15:45:35 |
| Access level: | the public | Released: | 2012-06-11 21:10:19 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 41978. | P. A. Meylan. 1996. Skeletal morphology and relationships of the Early Cretaceous side-necked turtle, Araripemys barretoi (Testudines: Pelomedusoides: Araripemydidae), from the Santana Formation of Brazil. Journal of Vertebrate Paleontology 16(1):20-33 [R. Benson/R. Benson] |