Loc. 49 - Gheldeis Fm: Early Oligocene, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Cassidae
Cassidaria sp. Lamarck 1816
Gastropoda - Neogastropoda - Turbinellidae
Turbinella sp. Lamarck 1799
Gastropoda - Eocypraeidae
Cypraea subexcisa Braun 1840
Gastropoda - Naticidae
Natica sp. Scopoli 1777
Gastropoda - Ampullinidae
Ampullospira oweni (d'Archiac and Haime 1854)
Nummulitidae
see common names

Geography
Country:Somalia
Coordinates: 9.8° North, 50.8° East (view map)
Paleocoordinates:0.8° North, 49.4° East (Wright 2013)
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 Oligocene
Age range of interval: 33.9 - 27.82 m.y. ago
Stratigraphy
Geological group:Hafún Formation:Gheldeis
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Gheldeis Fm [enterers usage] of the Hafún Series [group?], and presumably regionally overlies Late Eocene strata and is overlain by the Gianti Fm [enterers usage] (Early 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:shelly/skeletal lithified sandy "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Calcarie arenacei con quarzi colorati. 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: Not stated. 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:79042
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-02-23 19:00:22 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2009-02-23 19:00:22
Creative Commons license:CC0
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]