Loc. 10 - Ghibirti Fm (Miocene of Somalia)

Where: Somalia (11.0° N, 51.1° E: paleocoordinates 10.3° N, 48.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ghibirti Formation (Hafún Group), Early/Lower Miocene (23.0 - 16.0 Ma)

• 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). AGE: Early Miocene, equivalent to Aquitanian and lower Gaj according to author on the basis of larger formaniferal and molluscan biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within section.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, sandy limestone

• ENVIRONMENT: Shallow subtidal carbonate environment.
• SPECIFIC LITHOLOGY: Calcare arenaceo giallastro. LITHIFICATION: Lithified on the basis of figured specimens from adjacent beds.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Facca & Marchesini in 1938-1939

• COLLECTOR: Collected by G. Facca and E. Marchesini, 1938-1939. REPOSITORY: Museo dell' Istituto Geologico dell' Universitá di Firenze.

Primary reference: 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 78953: authorized by Austin Hendy, entered by Austin Hendy on 19.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Not exhaustive, but limited to characteristic gastropoda, bivalvia, foraminifera, and anthozoa. NOMENCLATURE: Authoritative publication, but with antiquated nomenclature.
Anthozoa
 Scleractinia - Dendrophylliidae
Dendrophyllia sp. Blainville 1830 stony coral
Bivalvia
 Arcida - Glycymerididae
"Pectunculus sp." = Glycymeris
"Pectunculus sp." = Glycymeris Da Costa 1778 clam
 Arcida - Arcidae
"Arca (Barbatia) sp." = Barbatia
"Arca (Barbatia) sp." = Barbatia Gray 1842 clam
 Ostreida - Ostreidae
Ostrea subangulata d'Orbigny 1852 oyster
 Ostreida - Gryphaeidae
"Ostrea hyotis" = Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster
Exogyra miotaurinensis Sacco 1897 oyster
 Pectinida - Pectinoidae
"Chlamys pusio" = Talochlamys pusio Linnaeus 1758 scallop
Amussium destefanii Ugolini 1903 scallop
"Chlamys senatoria" = Mimachlamys senatoria Gmelin 1791 scallop
Spondylus ornatissimus Böhm 1927 scallop
 Pholadida - Teredinidae
"Kuphus cf. polythalamius" = Kuphus polythalamia
"Kuphus cf. polythalamius" = Kuphus polythalamia Linnaeus 1767 clam
 Cardiida - Cardiidae
Cardium sp. Linnaeus 1758 cockle
 Cardiida - Veneridae
"Venus papyracea" = Clementia (Clementia) papyracea
"Venus papyracea" = Clementia (Clementia) papyracea Gray 1825 venus clam
Gastropoda
 Sorbeoconcha - Naticidae
Natica sp. Scopoli 1777 moon snail
 Neogastropoda - Turridae
"Pleurotoma sp." = Turris
"Pleurotoma sp." = Turris Röding 1798 turrid
 Architaenioglossa - Ampullinidae
"Ampullospira sp." = Ampullina (Ampullospira)
"Ampullospira sp." = Ampullina (Ampullospira) Harris 1897 snail
Foraminifera
 Orbitoidacea - Lepidocyclinidae