Loc. 68 - Gheldeis Fm (Oligocene of Somalia)

Where: Somalia (9.3° N, 50.4° E: paleocoordinates 6.4° N, 45.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gheldeis Formation (Hafún Group), Early/Lower Oligocene (33.9 - 28.4 Ma)

• 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.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

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

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: COLLECTOR: Not stated. 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 79050: authorized by Austin Hendy, entered by Austin Hendy on 23.02.2008

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.
Rotaliina
 Nummulitacea - Nummulitidae
Bivalvia
 Ostreida - Ostreidae
Ostrea protoimbricata Vredenburg 1928 oyster
Echinoidea
 Spatangoida - Schizasteridae
Schizaster sp. Agassiz 1835 heart urchin