Bairro Cachoeira, Monte Alto: Late/Upper Campanian - Early/Lower Maastrichtian, Brazil
collected 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Sphagesaurus montealtensis n. sp.
Andrade and Bertini 2008
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| recombined as Caipirasuchus montealtensis | ||||||||||
| MPMA 15-001/90 - type - skull and mandible | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Brazil | State/province: | São Paulo |
| Coordinates: | 21.3° South, 48.5° West (view map) | ||
| Paleocoordinates: | 25.6° South, 31.5° West | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Key time interval: | Late/Upper Campanian - Early/Lower Maastrichtian | ||
| Age range of interval: | 83.60000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Bauru | Formation: | Adamantina | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Whereas a Turonian–Santonian age for the Adamantina Formation, based on ostracods and charophytes, has been proposed (Dias-Brito et al. 2001), other authors have argued for a Campanian–Maastrichtian age, based on vertebrate fossils and an alternative interpretation of the ostracod fauna (e.g. Gobbo-Rodrigues et al. 1999; Fernandes and Coimbra 2000). Most recently, stratigraphic work on the Bauru Basin has argued for a late Campanian–early Maastrichtian age for this stratigraphic unit (Batezelli 2017). | |||||
Lithology and environment
| Primary lithology: | fine,red sandstone |
| Includes fossils? | Y |
| Lithology description: Found among a fine-grained rose to reddish sandstone, with contribution of a silticmatrix. The sediment directly associated with the specimen was extremely hard and resistant. | |
| Environment: | fluvial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1990 |
Metadata
| Also known as: | Sphagesaurus montealtensis type, MPMA 15 | ||
| Database number: | 114458 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion |
| Modifier: | M. Carrano | ||
| Created: | 2011-08-15 01:38:44 | Last modified: | 2022-03-11 14:35:37 |
| Access level: | the public | Released: | 2011-08-15 01:38:44 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 37093. | M. B. d. Andrade and R. J. Bertini. 2008. A new Sphagesaurus (Mesoeucrocodylia: Notosuchia) from the Upper Cretaceous of Monte Alto City (Bauru Group, Brazil), and a revision of the Sphagesauridae. Historical Biology 20(2):101-136 [P. Mannion/P. Mannion] |