Loc. 12 -Ghibirti Fm (erratic specimens): Early Miocene, Somalia
collected by Facca & Marchesini 1938-1939
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Ostreida
- Gryphaeidae
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Ostrea hyotis
(Linnaeus 1758)
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Bivalvia
- Arcida
- Arcidae
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Arca (Barbatia) sp.
(Gray 1842)
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Gastropoda
- Ampullinidae
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Ampullonatica sp.
Sacco 1890
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Gastropoda
- Xenophoridae
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Xenophora deshayesi
(Michelotti 1847)
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Gastropoda
- Neogastropoda
- Conidae
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Conus cf. brevis
Sowerby 1840
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Anthozoa
- Scleractinia
- Siderastreidae
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Siderastrea siderea
(Ellis and Solander 1786)
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| see common names | |||||||
Geography
| Country: | Somalia |
| Coordinates: | 10.8° North, 51.1° East (view map) |
| Paleocoordinates: | 10.1° North, 48.6° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Early Miocene | ||
| Age range of interval: | 23.03 - 15.98 m.y. ago |
Stratigraphy
| Geological group: | Hafún | Formation: | Ghibirti | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Ghibirti Fm [enterers usage] of the Hafún Series [group?] of Early Miocene, and presumably regionally overlies the Tavo Fm [enterers usage] (Late Oligocene) and is overlain by the Naag Fm [enterers usage] (Early Miocene). THICKNESS: Difficult to ascertain, but a bed of not great thickness. AGE: Early Miocene, equivalent to Aquitanian and lower Gaj according to author on the basis of larger formaniferal and molluscan biostratigraphy. STRATIGRAPHIC POSITION: From floating specimens in section. | |||||
Lithology and environment
| Primary lithology: | lithified not reported |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Unknown. 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
| Database number: | 78905 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-02-19 10:50:19 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2009-02-19 10:50:19 |
| 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] |