Gebel Madrakah - Ghubbarah Fm (Miocene of Oman)

Where: Oman (19.0° N, 57.8° E: paleocoordinates 14.6° N, 53.5° E)

• coordinate stated in text

• local area-level geographic resolution

When: Ghubbarah Formation, Aquitanian (23.0 - 20.4 Ma)

• STRATIGRAPHIC RELATIONS: From the Ghubbarah Fm, which is unconformably overlies the Warak Fm (late Chattian). THICKNESS: Unknown. AGE: early-middle Aquitanian. STRATIGRAPHIC POSITION: top of section, probably nearly base of formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; poorly lithified, shelly/skeletal floatstone

• ENVIRONMENT: Seagrass meadows and sheltered lagoons, near coral reef facies (5-30 m).
• SPECIFIC LITHOLOGY: Dense floatsyone, strombid coquinas, largely silicified. LITHIFICATION: Poorly lithified, based on figured specimens.

Size class: macrofossils

Preservation: replaced with silica

Collected by Harzhauser, Reuter, Piller, Kroh; reposited in the NHMW

Collection methods: surface (in situ),

• COLLECTORS: Harzhauser, Reuter, Piller, Kroh. REPOSITORY: NHMW (Vienna).

Primary reference: M. Harzhauser. 2007. Oligocene and Aquitanian gastropod faunas from the Sultanate of Oman and their biogeographic implications for the western Indo-Pacific. Palaeontographica Abteilung A 280:75-121 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75609: authorized by Austin Hendy, entered by Austin Hendy on 20.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes gastropods, and other taxa informally mentioned in text.
Bivalvia
 Cardiida - Cardiidae
Tridacna evae Harzhauser et al. 2008 cockle
Gastropoda
 Architaenioglossa - Ampullinidae
Pachycrommium harrisi Pannekoek 1936 snail
Warakia pilleri n. sp. Harzhauser 2007 snail
 Neogastropoda - Mitridae
Mitra cf. dufesnei Basterot 1825 mitre shell
 Neogastropoda - Conidae
Conus "n. sp. 1" Linnaeus 1758 cone shell
 Stromboidea - Strombidae
"Strombus gijskronenbergi n. sp." = Persististrombus gijskronenbergi, "Dilatilabrum sublatissimus" = Dilatilabrum sublatissimum
"Strombus gijskronenbergi n. sp." = Persististrombus gijskronenbergi Harzhauser 2007 true conch
"Dilatilabrum sublatissimus" = Dilatilabrum sublatissimum d'Orbigny 1852 true conch
 Stromboidea - Seraphsidae
Seraphs cf. subconvolutus d'Orbigny 1852 snail
 Cypraeoidea - Pediculariidae
Projenneria sabaica n. sp. Fehse 2007 snail
 Sorbeoconcha - Cerithiidae
Gourmya delbosi, "Campanile pseudoobeliscus" = Cerithium pseudoobeliscus, "Cerithium rude" = Cerithium (Ptychocerithium) rude
Gourmya delbosi Michelotti 1861 cerith snail
"Campanile pseudoobeliscus" = Cerithium pseudoobeliscus Grateloup 1832 cerith snail
"Cerithium rude" = Cerithium (Ptychocerithium) rude Sowerby 1840 cerith snail
 Trochoidea - Trochidae
Cantharidus (Beraua) elkeae n. sp. Harzhauser 2007 top snail