Quebrada Chanchoquin, Atacama: Late/Upper Sinemurian, Chile
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Trochidae
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Lithotrochus humboldtii
(von Buch 1839)
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Gründel 2001 | 5 fragments | ||||||||
| fragments, juvenile | ||||||||||
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Pholadomya (Pholadomya) idea
(d'Orbigny 1850)
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Aberhan 2004 | 1 individual | ||||||||
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Bivalvia
- Trigoniida
- Groeberellidae
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Groeberella neuquensis
(Groeber 1924)
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Pérez et al. 2008 | 1 individual | ||||||||
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Bivalvia
- Ostreida
- Palaeolophidae
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Actinostreon costatum
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8 individuals | |||||||||
| original and current combination Lopha (Actinostreon) | ||||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Gryphaea (Bilobissa) tricarinata
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10 individuals | |||||||||
| see common names | ||||||||||
Geography
| Country: | Chile |
| Coordinates: | 28.8° South, 70.3° West (view map) |
| Paleocoordinates: | 31.3° South, 31.8° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Sinemurian | 10 m.y. bin: | Jurassic 1 |
| Key time interval: | Late/Upper Sinemurian | ||
| Age range of interval: | 199.50000 - 192.90000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | not reported | ||
| Environment: | open shallow subtidal | Tectonic setting: | back-arc basin |
Taphonomy
| Modes of preservation: | body,mold/impression,original calcite,replaced with silica |
| Size of fossils: | macrofossils |
| Fragmentation: | occasional |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | mechanical,acetic,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: collected since 1966 | |
Metadata
| Database number: | 95071 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2010-04-06 01:28:33 | Last modified: | 2017-08-04 14:36:27 |
| Access level: | the public | Released: | 2010-04-06 01:28:33 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32459. | M. Aberhan. 1994. Early Jurassic Bivalvia of northern Chile. Part I. Subclasses Palaeotaxodonta, Pteriomorphia, and Isofilibranchia. Beringeria 13:3-115 [M. Aberhan/S. Nurnberg] |
Secondary references:
| 32394 | M. Aberhan. 2004. Early Jurassic Bivalvia of northern Chile. Part II. Subclass Anomalodesmata. Beringeria 34:117-154 [M. Aberhan/S. Nurnberg/S. Nurnberg] | |
| 15673 | J. Gründel. 2001. Gastropoden aus dem Jura der südamerikanischen Anden - Gastropods from the Jurassic of the Andes of South America. Paläontologie, Stratigraphie, Fazies - Heft 9; Freiberger Forschungshefte C 492:43-84 [M. Aberhan/S. Nurnberg] | |
| 32375 | E. Pérez, M. Aberhan, R. Reyes and A. Hillebrandt. 2008. Early Jurassic Bivalvia of northern Chile. Part III. Order Trigonioida. Beringeria 39:51-102 [M. Aberhan/S. Nurnberg/M. Clapham] |