Buxéxé, Santana do Cariri: Late Aptian, Brazil
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Spinosauridae
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Irritator challengeri n. gen., n. sp.
Martill et al. 1996
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1 individual | |||||||||
| SMNS 58022 | ||||||||||
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Actinopteri
- Ichthyodectiformes
- Cladocyclidae
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Ostracoda
- Podocopida
- Cyprididae
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| Sues et al. 2002 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | Ceará |
| Coordinates: | 7.2° South, 39.3° West (view map) | ||
| Paleocoordinates: | 5.1° South, 3.0° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 650 meters | ||
| Geographic resolution: | basin |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| *Period: | Early/Lower Cretaceous | ||
| *International age/stage: | Albian | ||
| Key time interval: | Late Aptian | ||
| Age range of interval: | 119.57 - 113.2 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Santana | Formation: | Romualdo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 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: | mudstone |
| Secondary lithology: | concretionary "limestone" |
| Includes fossils? | Y |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | many |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Irritator type site | ||
| Database number: | 28052 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2003-01-22 10:35:55 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-01-22 10:35:55 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 7683. | D. M. Martill, A. R. I. Cruickshank, E. Frey, P. G. Small, and M. Clarke. 1996. A new crested maniraptoran dinosaur from the Santana Formation (Lower Cretaceous) of Brazil. Journal of the Geological Society, London 153:5-8 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 13838 | ETE | A. W. A. Kellner and D. d. A. Campos. 2000. Brief review of dinosaur studies and perspectives in Brazil. Anais da Academia Brasileira de Ciências 72(4):509-538 [M. Carrano/M. Carrano/M. Carrano] |
| 86329 | T. B. Ribeiro, P. M. M. Brito, and P. V. L. G. Costa Pereira. 2023. The predominance of teeth in the non-avian dinosaur record from Cretaceous Brazil: a review. Historical Biology [M. Carrano/M. Carrano] | |
| 7684 | H.-D. Sues, E. Frey, D. M. Martill and D. M. Scott. 2002. Irritator challengeri, a spinosaurid (Dinosauria: Theropoda) from the Lower Cretaceous of Brazil. Journal of Vertebrate Paleontology 22(3):535-547 [M. Carrano/M. Carrano/M. Carrano] |