Bed D - Wadi Tavo-tavo [Tavo Fm]: Late Oligocene, Somalia
collected by Facca & Marchesini 1938-1939
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pholadida
- Teredinidae
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Kuphus cf. polythalamius
(Linnaeus 1767)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea subangulata
d'Orbigny 1852
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Gastropoda
- Strombidae
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Strombus sp.
Linnaeus 1758
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Anthozoa
- Scleractinia
- Poritidae
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Porites minuta
Reuss 1868
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Anthozoa
- Scleractinia
- Dendrophylliidae
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Dendrophyllia sp.
Blainville 1830
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Geography
| Country: | Somalia |
| Coordinates: | 11.0° North, 51.0° East (view map) |
| Paleocoordinates: | 9.3° North, 47.0° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Late Oligocene | ||
| Age range of interval: | 27.82 - 23.03 m.y. ago |
Stratigraphy
| Geological group: | Hafún | Formation: | Tavo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Tavo Fm [enterers usage] of the Hafún Series [group?] of Late Oligocene, and presumably regionally overlies the Gianti Fm [enterers usage] (Early Oligocene) and is overlain by the Ghibirti Fm [enterers usage] (Early Miocene). THICKNESS: Difficult to ascertain, but a bed of not great thickness. AGE: Late Oligocene, equivalent to Chattian and upper Nari according to author on the basis of larger formaniferal and molluscan biostratigraphy. STRATIGRAPHIC POSITION: From Bed D, near base of section. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Calcari organogeni teneri. LITHIFICATION: Lithified on the basis of figured specimens from adjacent beds. | |
| Environment: | shallow subtidal indet. |
| Geology comments: ENVIRONMENT: Shallow subtidal carbonate environment. | |
Taphonomy
| Modes of preservation: | body,cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera | ||
| Collection methods: | field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | Facca & Marchesini | Collection dates: | 1938-1939 |
| Collection method comments: COLLECTOR: Collected by G. Facca and E. Marchesini, 1938-1939. REPOSITORY: Museo dell' Istituto Geologico dell' Universitá di Firenze. | |||
| Taxonomic list comments:COVERAGE: Not exhaustive, but limited to characteristic gastropoda, bivalvia, foraminifera, and anthozoa. NOMENCLATURE: Authoritative publication, but with antiquated nomenclature. | |||
Metadata
| Also known as: | Loc. 9 | ||
| Database number: | 78836 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-02-18 20:25:18 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2009-02-18 20:25:18 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 26500. | A. Azzaroli. 1958. L'Oligocene e il Miocene della Somalia. Stratigrafia, Tettonica, Paleontologia (Macroforaminferi, Coralli, Molluschi). Palaeontolographia Italica 52:1-142 [A. Hendy/A. Hendy] |