Barra do Jardim, Chapada do Araripe: Late Aptian, Brazil
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Pterosauria
|
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| 1 individual | ||||||||||
| AMNH 22552, partial right forelimb | ||||||||||
| 1 individual | ||||||||||
| AMNH 22555, skull and partial postcranial skeleton | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | Ceará |
| Coordinates: | 8.0° South, 39.4° West (view map) | ||
| Paleocoordinates: | 5.8° South, 2.8° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late Aptian | ||
| Age range of interval: | 119.57 - 113.2 m.y. ago |
Stratigraphy
| Geological group: | Santana | Formation: | Romualdo | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: In recent usage (e.g. Martill 2007) the Romualdo Member and the Santana Formation are essentially synonyms
Santana Formation suggested to be early Albian in age by Heimhofer & Hochuli (2010) on the basis of palynomorphs 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 and Santana Group is entirely Aptian in age. | |||||
Lithology and environment
| Primary lithology: | concretionary calcareous "shale" | ||
| Includes fossils? | Y | ||
| Lithology description: limestone concretions in black shales | |||
| Environment: | lagoonal/restricted shallow subtidal | Tectonic setting: | pull-apart basin |
Taphonomy
| Modes of preservation: | body,concretion |
| Lagerst�tten type: | conservation |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,chemical |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | AMNH |
Metadata
| Also known as: | Araripe Plateau | ||
| Database number: | 94694 | ||
| Authorizer: | R. Butler | Enterer: | R. Butler |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2010-03-09 08:08:44 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2010-03-09 08:08:44 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 32262. | P. Wellnhofer. 1991. Weitere Pterosaurierfunde aus der Santana-Formation (Apt) der Chapada do Araripe, Brasilien. Palaeontographica Abteilung A 215:43-101 [R. Butler/R. Butler] |
Secondary references:
| 33195 | U. Heimhofer and P. A. Hochuli. 2010. Early Cretaceous angiosperm pollen from a low-latitude succession (Araripe Basin, NE Brazil). Review of Palaeobotany and Palynology 161:105-126 [R. Butler/R. Butler/P. Santamarina] | |
| 32273 | D. M. Martill. 2007. The age of the Cretaceous Santana Formation fossil Konservat Lagerstätte of north-east Brazil: a historical review and an appraisal of the biochronostratigraphic utility of its palaeobiota. Cretaceous Research 28:895-920 [R. Butler/R. Butler] |