Loc. 97 - Dubar Fm: Middle Miocene, Somalia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Nummulitidae
Operculinella cf. philippinensis
Lepidocyclinidae
Lepidocyclina pusilla
Lepidocyclina praemarginata
Gastropoda - Naticidae
Natica sp. Scopoli 1777
Gastropoda - Cassidae
Cassidaria ? desori d'Archiac and Haime 1854
Gastropoda - Cypraeidae
Cypraea sp. Linnaeus 1758
Gastropoda - Neogastropoda - Turbinellidae
Turbinella sp. Lamarck 1799
Gastropoda - Neogastropoda - Conidae
Conus cf. brevis Sowerby 1840
recombined as Conus (Lithoconus) brevis
Gastropoda - Strombidae
Strombus cf. nodosus Sowerby 1840
synonym of Persististrombus depertitus
Strombus ? coronatus Defrance 1827
recombined as Persististrombus coronatus
Gastropoda - Xenophoridae
Xenophora sp. Fischer von Waldheim 1807
Bivalvia - Pholadida - Teredinidae
Kuphus cf. polythalamius (Linnaeus 1767)
recombined as Kuphus polythalamia
Bivalvia - Ostreida - Ostreidae
Ostrea folium Linnaeus 1758
recombined as Dendostrea folium
Bivalvia - Ostreida - Gryphaeidae
Ostrea virleti Deshayes 1832
recombined as Hyotissa virleti
Anthozoa - Scleractinia - Acroporidae
Astreopora hemisphaerica (Duncan 1880)
Alveopora somaliensis Azzaroli 1958
Dendracis bifaria Gregory 1930
Anthozoa - Scleractinia - Merulinidae
Hydnophora infundibulum n. sp. Azzaroli 1958
Hydnophora solidior (Duncan 1880)
original and current combination Monticulastraea solidior
Anthozoa - Scleractinia - Heliastraeidae
Heliastrea carnegiei (Latham 1929)
Anthozoa - Scleractinia - Poritidae
Porites leptoclada Reuss 1871
see common names

Geography
Country:Somalia
Coordinates: 11.2° North, 49.0° East (view map)
Paleocoordinates:10.8° North, 47.3° 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:Middle Miocene
Age range of interval:15.98000 - 11.63000 m.y. ago
Stratigraphy
Geological group:Guban Formation:Dubar
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Dubar Fm [enterers usage] of the Guban Series [group?], and presumably regionally overlies Early Miocene strata (equivalent to the Naag Fm) and is overlain by the Late Miocene conglomerate. AGE: Middle Miocene, equivalent to Helvacean and lowermost Mekran according to author on the basis of larger formaniferal and molluscan biostratigraphy. Ostrea virleti is indicator for this zone. STRATIGRAPHIC POSITION: From unknown position within section.
Lithology and environment
Primary lithology:white lithified "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Calcare marnosi bianco. 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
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: G. Facca, G. Merla, 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:79082
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-02-24 22:03:51 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-02-24 22:03:51
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]