List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Cichliformes
- Cichlidae
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Gymnogeophagus eocenicus n. sp.
Malabarba et al. 2010
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Malabarba et al. 2010 | ||||||
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Proterocara argentina n. gen., n. sp.
Malabarba et al. 2006
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| see common names | |||||||
Geography
| Country: | Argentina | State/province: | Salta | County: | Salta |
| Coordinates: | 25.3° South, 65.8° West (view map) | ||||
| Paleocoordinates: | 27.1° South, 53.1° West (Wright 2013) | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Stratigraphy
| Geological group: | Salta | Formation: | Lumbrera | Member: | Faja Verde II |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Subgroup: Santa Barabara
Fernicola et al. 2021: new 238U-206Pb isochron age (46.2 Ma) obtained from samples taken on various independent points across paleosol and matrix positioned at the top of the lower section of the Lumbrera Formation. The new age is consistent with the hyperthermal scheme and constrains the deposition of the lower section of the Lumbrera Fm. between 55–46.2 Ma. Subsequently, the upper sections of the Lumbrera Formation are now constrained between 46 and 40 Ma (Lutetian) (see Fernicola et al. 2021: New assemblage of cingulates) | |||||
Lithology and environment
| Primary lithology: | fine sandstone |
| Secondary lithology: | planar lamination,gray claystone |
| Includes fossils? | Y |
| Environment: | lacustrine indet. |
| Geology comments: lake of low-energy, of freshwater chemistry, and surrounded by low-relief vegetated areas sporadically flooded | |
Taphonomy
| Modes of preservation: | adpression |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection excludes: | all macrofossils,all microfossils |
| Collection methods: | selective quarrying,mechanical,field collection |
| Collection size: | 2 specimens |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | Cecilia Del Papa |
| Collection method comments: Repository: Universidad Nacional de Salta, Salta, Argentina (CNS-V) | |
Metadata
| Also known as: | Proterocara argentina type locality | ||
| Database number: | 134349 | ||
| Authorizer: | S. Peters | Enterer: | S. McMullen |
| Modifier: | G. Varnham | Research group: | freshwater,vertebrate |
| Created: | 2012-10-08 09:30:49 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-10-08 09:30:49 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 43209. | M. C. Malabarba, O. Zuleta, and C. D. Papa. 2006. Proterocara argentina, a New Fossil Cichlid from the Lumbrera Formation, Eocene of Argentina. Journal of Paleontology 26(2):267-275 [S. Peters/S. McMullen/S. McMullen] |
Secondary references:
| 43476 | M. C. Malabarba, L. R. Malabarba, and C. Del Papa. 2010. Gymnogeophagus eocenicus, n. sp. (Perciformes: Cichlidae), an Eocene Cichlid from the Lumbrera Formation in Argentina. Journal of Vertebrate Paleontology 30(2):341-350 [S. Peters/S. McMullen] |