Ranquil 1: Barremian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Heterostropha
- Tubiferidae
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Paleoanculosa macrochilinoides
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121 specimens | ||||||
see common names |
Geography
Country: | Argentina | State/province: | Mendoza |
Coordinates: | 36.6° South, 69.8° West (view map) | ||
Paleocoordinates: | 36.6° South, 34.9° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Early Cretaceous |
Stage: | Barremian | 10 m.y. bin: | Cretaceous 2 |
Key time interval: | Barremian | ||
Age range of interval: | 125.77 - 121.4 m.y. ago |
Stratigraphy
Lithology and environment
Primary lithology: | marl |
Includes fossils? | Y |
Lithology description: The studied gastropods come from a thick marl bed (Facies C of Lazo et al., 2017) correlated among the three sections through lithology, fossil content, and relative stratigraphic position | |
Environment: | coastal indet. |
Geology comments: All sedimentological and paleontological evidence suggests a similar setting likely subject to the same depositional processes and comparable environmental fluctuations across the study area. The marl bed represents soft bottoms in a low-energy, possibly lagoonal setting with salinity fluctuating between normal marine and meso-brachyhaline regimes |
Taphonomy
Modes of preservation: | body,cast |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Collection size: | 121 specimens |
Reason for describing collection: | taxonomic analysis |
Collection method comments: The material is housed in the Museo de Ciencias Naturales y Antropológicas Juan Cornelio Moyano, Colección de Paleontología de Invertebrados (MCNAM-PI), Mendoza, Mendoza province, Argentina, under the repository numbers MCNAM-PI 24522, 24525, and 25004. |
Metadata
Database number: | 231774 | ||
Authorizer: | E. Vlachos | Enterer: | E. Vlachos |
Created: | 2023-09-05 14:27:39 | Last modified: | 2023-09-05 14:27:39 |
Access level: | the public | Released: | 2023-09-05 14:27:39 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
85756. | C. S. Cataldo, L. Luci, D. E. Fernandez, A. M. Andrada, and D. G. Lazo, M. B., and Aguirre-Urreta. 2023. Evidence of biotic interactions through shell repair on Early Cretaceous gastropods from west-central Argentina. Cretaceous Research 150:1-16 [E. Vlachos/E. Vlachos] |