Gypsum mine, ca. 2 km NE Santana do Cariri: Late Aptian, Brazil
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Reptilia
- Testudines
- Araripemydidae
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1 specimen |
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| DGM-DNPM 756-R; shell |
| see common names |
| Country: | Brazil |
State/province: | Ceará |
| Coordinates: |
7.2° South, 39.7° West (view map) |
| Paleocoordinates: | 5.0° South, 2.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
| Period: | Cretaceous |
Epoch: | Early Cretaceous |
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10 m.y. bin: | Cretaceous 2-3 |
| Key time interval: | Late Aptian |
| Age range of interval: | 119.57 - 113.2 m.y. ago |
| 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. |
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| 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 |
| 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: | 2025-02-22 15:12:02 |
| Access level: | the public |
Released: | 2012-06-11 21:10:19 |
| Creative Commons license: | CC0 |
| 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] |