Arroyo Malo main section, sample 10: Rhaetian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Ostreida
- Gryphaeidae
|
||||||||||
Liostrea sp.
Douvillé 1904
|
||||||||||
(2 measurements) | ||||||||||
Bivalvia
- Ostreida
- Cassianellidae
|
||||||||||
Cassianella cf. peruana
Korner 1937
|
||||||||||
Bivalvia
- Pectinida
- Limidae
|
||||||||||
Pseudolimea riccardii
Damborenea 2012
|
||||||||||
Bivalvia
- Carditida
- Astartidae
|
||||||||||
? Nicaniella cf. incae
(Jaworski 1922)
|
||||||||||
(1 measurement) | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
|
||||||||||
Septocardia cf. peruviana
(Cox 1949)
|
||||||||||
Bivalvia
- Trigoniida
- Trigoniidae
|
||||||||||
? Minetrigonia multicostata
(Korner 1937)
|
||||||||||
see common names |
Geography
Country: | Argentina | State/province: | Mendoza |
Coordinates: | 34.8° South, 69.9° West (view map) | ||
Paleocoordinates: | 40.5° South, 29.3° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
Stage: | Rhaetian | 10 m.y. bin: | Triassic 4 |
Key time interval: | Rhaetian | ||
Age range of interval: | 208.50000 - 201.40000 m.y. ago |
Stratigraphy
Formation: | Arroyo Malo | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: The report of Choristoceras cf. marshi Hauer from some levels of this sequence (Riccardi & Iglesia Llanos, 1999; Riccardi, 2008c) supports a late Rhaetian age for that part of the succession. Most of the fauna described here was found between 10 and 80 m below the main level with Choristoceras. |
Lithology and environment
Primary lithology: | planar lamination,nodular lithified mudstone |
Environment: | prodelta |
Geology comments: Mainly fandeltaic facies with planar laminated mudstones, fine sandstones and conglomeratic lenses deposited by low- and high-density turbidity currents and debris flows. |
Taphonomy
Modes of preservation: | body,mold/impression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | surface (float),surface (in situ),field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | MLP |
Collection method comments: The material described here was collected over many years from different fossiliferous levels of the Arroyo Malo Formation during several field seasons. |
Metadata
Database number: | 132718 | ||
Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
Created: | 2012-08-25 09:14:35 | Last modified: | 2017-05-23 16:34:15 |
Access level: | the public | Released: | 2012-08-25 09:14:35 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
42739. | S. E. Damborenea and M. O. Manceñido. 2012. Late Triassic bivalves and brachiopods from southern Mendoza, Argentina. Revue de Paléobiologie, Genève, vol. spéc 11:317-344 [M. Clapham/M. Clapham] |