DV 574-2 [Chilcatay Fm]: Burdigalian, Peru
collected by DeVries
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neogastropoda
- Muricidae
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Acanthina sp.
Fischer de Waldheim 1807
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| see common names | |||||||
Geography
| Country: | Peru |
| Coordinates: | 14.8° South, 75.5° West (view map) |
| Paleocoordinates: | 15.7° South, 71.3° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Burdigalian | ||
| Age range of interval: | 20.44000 - 15.98000 m.y. ago |
Stratigraphy
| Formation: | Chilcatay | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Originally Early Miocene
STRATIGRAPHIC RELATIONS: From the Chilcatay Fm, which regionally, unconformably overlies the Otuma Fm (Oligocene) and is unconformably overlain by the Pisco Fm (Middle Miocene-Late Pliocene). AGE: latest Oligocene-early Middle Miocene, for which justification is not stated. Overlain by the Prisco Fm, for which K/Ar dates, siliceous microfossil zonation, and molluscan biostratigraphy supports a Middle Miocene age at its oldest. The collection is placed by the authors within the Early Miocene. STRATIGRAPHIC POSITION: From top of deltaic foreset beds of coarse grained bioclastic sandstone. | |||||
Lithology and environment
| Primary lithology: | "cross stratification",shelly/skeletal lithified calcareous sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Sandstone. LITHIFICATION: Lithified based on figured specimens. | |
| Environment: | shoreface |
| Geology comments: ENVIRONMENT: Not discussed in text, but appears to be from very shallow marine siliciclastic setting. | |
Taphonomy
| Modes of preservation: | body,original aragonite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera,some macrofossils |
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UWBM |
| Collectors: | DeVries |
| Collection method comments: COLLECTOR: DeVries. REPOSITORY: UWMB, Washington. | |
| Taxonomic list comments:COVERAGE: Limited to taxon described in publication, and supporting publications NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution taxonomic assignments. | |
Metadata
| Database number: | 80505 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2008-04-21 13:53:35 | Last modified: | 2020-07-22 15:52:06 |
| Access level: | the public | Released: | 2008-04-21 13:53:35 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27066. | T. J. DeVries. 2003. Acanthina Fischer von Waldheim, 1807 (Gastropoda: Muricidae), an ocenebrine genus edemic to South America. The Veliger 46(4):332-350 [A. Hendy/A. Hendy] |
Secondary references:
| 73128 | G. Bosio, E. Malinverno, A. Collareta, C. Di Celma, A. Gioncada, M. Parente, F. Berra, F. G. Marxf, A. Vertino, M. Urbina, and G. Bianucci. 2020. Strontium Isotope Stratigraphy and the thermophilic fossil fauna from the middle Miocene of the East Pisco Basin (Peru). Journal of South American Earth Sciences 97 [M. Uhen/M. Uhen] |