Valle de Traslasierra - Heredia Cliffs: Montehermosan - Chapadmalalan, Argentina
collected by Castellanos 1936, 1942, 1944
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Notoungulata
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Paedotherium bonaerense
(Ameghino 1887)
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| MUFyCA 372 - 375, MUFyCA 764 | ||||||||||
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Mammalia
- Notoungulata
- Toxodontidae
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Nonotherium hennigi n. gen., n. sp.
Castellanos 1942
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| Holotype: MUFyCA 1 | ||||||||||
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Mammalia
- Cingulata
- Panochthidae
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Propanochthus bullifer n. sp.
(Burmeister 1872)
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Cruz 2013 | |||||||||
| original and current combination Panochthus bullifer | ||||||||||
| also Castellanos,1942, also ref 72512: Holotype: MACN-Pv 1761 | ||||||||||
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Nopachtus coagmentatus
Ameghino 1888
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Castellanos 1942 | |||||||||
| spelled Nopachthus coagmentatus | ||||||||||
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Mammalia
- Cingulata
- Glyptodontidae
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Paraglyptodon cordubensis
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Castellanos 1942 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Córdoba |
| Coordinates: | 31.8° South, 65.0° West (view map) | ||
| Paleocoordinates: | 31.9° South, 63.7° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Montehermosan - Chapadmalalan | ||
| Age range of interval: | 4.90000 - 2.90000 m.y. ago |
Stratigraphy
| Formation: | Brochero | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: It is very difficult to determine the age of deposition of the Brochero Formation of Traslasierra Valley. The fossil fauna of vertebrates recorded from the Brochero Formation allows us to propose 3 hypothesis regarding the age on the basis of the biochrons discussed above, the best hypothesis is that this assemblage may be Chapadmalalan in age. However more studies should be done.
Cruz 2013: It corresponds to the biostratigraphic mammal assemblage 3) Nonotherium hennigie Propanochthus bullifer assemblage zone with type area and profile based on the Los Sauces river, Valle de Traslasierra, referred to the MontehermosaneChapadmalalan interval (Pliocene) Zamorano 2013: La procedencia estratigráfi ca y geográfi ca del holotipo es: Formación Brochero (Montehermosense - Chapadmalalense [Plioceno temprano-Plioceno tardío]) de las Sierras de Córdoba, en las cercanías de Villa Cura Brochero | |||||
Lithology and environment
| Primary lithology: | massive poorly lithified argillaceous gravel |
| Includes fossils? | Y |
| Lithology description: Massive gravel (Gm) facies: 20–50 cm of medium to fine gravels with occasional 5 to 10 cm clasts dispersed, with no visible stratification, which are interpreted as lag deposits; | |
| Environment: | "floodplain" |
| Geology comments: the facies associations here described suggest a fluvial paleoenvironment of meandering type where two major sub-environments are recognized: channels or channel belts (facies 1 to 4, Fig. 2) and vegetated floodplains (facies 5 and 6, Fig. 2). The meandering river systems con- sist of a single high sinuosity channel (with point bars or bars spurs) and floodplain deposits with fine sedimentation and overflow lobes and channels. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | Castellanos | Collection dates: | 1936, 1942, 1944 etc. |
| Collection method comments: Castellanos (1942, 1944) described from Valle de Traslasierra (Fig. 1) at least seven sites where outcropping sediments were assigned to his BBrocherense,^ but only three with fossils (Los Chiflones stream, Paso del Río Arriba Cliffs, and Heredia Cliffs, see point 2, 4, and 5, respectively in Fig. 1). All these cliffs have been identified in different field trips from 2009 to 2016. | |||
| Taxonomic list comments:Finally, materials collected in the Valle de Traslasierra are housed in the MUFyCA in Rosario | |||
Metadata
| Database number: | 197904 | ||
| Authorizer: | P. Mannion | Enterer: | M. Kouvari |
| Modifier: | M. Kouvari | ||
| Created: | 2018-11-28 08:28:20 | Last modified: | 2020-09-20 02:08:53 |
| Access level: | the public | Released: | 2018-11-28 08:28:20 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 67444. | L. E. Cruz, J. C. Fernicola, and C. A. Carignano. 2018. New Vertebrates of the Brochero Formation (Córdoba, Argentina): A Review of the Pliocene of Central Argentina. Journal of Mammalian Evolution 25:315-326 [P. Mannion/M. Kouvari] |
Secondary references:
| 67450 | A. Castellanos. 1942. Los sedimentos Prepampeanos des Valle de Nono (Sierra de Cordoba) Argentina. Publicaciones des Instituto de Fisiografia y Geologia 13 [P. Mannion/M. Kouvari] | |
| 67447 | L. E. Cruz. 2013. Biostratigraphy and geochronology of the late Cenozoic of Córdoba Province (central Argentina). Journal of South American Earth Sciences 42:250-259 [P. Mannion/M. Kouvari] |