Loc. 43 - Gianti Fm: Early/Lower Oligocene, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Pectinidae
Chlamys sp. Röding 1798
Bivalvia - Pholadida - Teredinidae
Kuphus cf. polythalamius (Linnaeus 1767)
recombined as Kuphus polythalamia
Anthozoa - Scleractinia - Plesiastreidae
Plesiastrea grayi Kühn 1933
Nummulitidae
Nummulites intermedius
Heterostegina complana
Lepidocyclinidae
Lepidocyclina ehilensis
Lepidocyclina formosoides
Lepidocyclina tournoueri
see common names

Geography
Country:Somalia
Coordinates: 9.5° North, 50.8° East (view map)
Paleocoordinates:6.6° North, 45.7° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Early/Lower Oligocene
Age range of interval:33.90000 - 27.82000 m.y. ago
Stratigraphy
Geological group:Hafún Formation:Gianti
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Gianti Fm [enterers usage] of the Hafún Series [group?], and presumably regionally overlies the Gheldeis Fm [enterers usage] (Early Oligocene) and is overlain by the Tavo Fm [enterers usage] (Late Oligocene). AGE: Early Oligocene, equivalent to Stampien and middle Nari according to author on the basis of larger formaniferal and molluscan biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within section.
Lithology and environment
Primary lithology: lithified calcareous sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Arenaria giallastra e di calcari fossiliferi. 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
Collection method comments: COLLECTOR: Unknown. 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:79041
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2008-02-23 18:56:17 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-02-23 18:56:17
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]