Hannatoma J: Zapallo Fm: NW Ecuador (Stone): Late/Upper Eocene, Ecuador
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Gumbelina venezuelana
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Globothalamea
- Rotaliida
- Cibicididae
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Planulina peruviana
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Nodosariata
- Nodosariida
- Nodosariidae
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Robulus coaledensis
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Robulus chiranus
Cushman and Stone 1947
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Nodosariata
- Polymorphinida
- Plectofrondiculariidae
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Plectofrondicularia peruviana
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unclassified
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Stichocassidulina thalmanni
Stone 1946
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Bolivinidae
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Bolivina basisenta
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Bolivina maculata
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Hantkeninidae
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Hantkenina alabamensis
Cushman 1927
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Globigerinidae
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Globigerina spp.
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Hastigerinella eocenica
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Buliminidae
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Bulimina chirana
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Bulimina jacksonensis
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Geography
| Country: | Ecuador |
| Coordinates: | 0.9° North, 79.9° West (view map) |
| Paleocoordinates: | 1.6° South, 72.8° West |
| Basis of coordinate: | based on political unit |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Late/Upper Eocene | ||
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Formation: | Zapallo |
Lithology and environment
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection excludes: | all macrofossils,some microfossils |
| Collection methods: | survey of museum collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Faunal correlations were made by Mr. A. Martinez of the International Petroleum Oil Company. | |
Metadata
| Database number: | 42868 | ||
| Authorizer: | L. Ivany | Enterer: | C. Visaggi |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 2004-08-06 07:01:30 | Last modified: | 2004-08-09 16:48:28 |
| Access level: | the public | Released: | 2004-08-06 07:01:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11374. | J. W. Durham, A.N. Dusenbury, Jr, H.D. Hedberg, L. Kehrer, J.G. Marks, R.M. Stainforth, and B. Stone. 1949. The age of the Hannatoma mollusk fauna of South America; a symposium. Journal of Paleontology 23(2):145-160 [L. Ivany/C. Visaggi/C. Visaggi] |