Karmah Pass - Warak Fm (Oligocene of Oman)

Where: Oman (19.5° N, 57.6° E: paleocoordinates 13.9° N, 52.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Warak Formation, Chattian (28.1 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Warak Fm, which is unconformably overlies the Shuwayr Fm (latest Rupelian-early Chattian) and is unconformably overlain by the Ghubbarah Fm (Aquitanian). THICKNESS: From section of up to 30 m in thickness. AGE: late Chattian. STRATIGRAPHIC POSITION: Unknown position within section.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; poorly lithified, shelly/skeletal limestone and poorly lithified, shelly/skeletal grainstone

• ENVIRONMENT: Very shallow marine depositional environment. Some evidence of shallow sublittoral setting of a few tens of metres of water depth. Many taxa typical of patch reefs, coral carpets, sea grass meadows, and littoral mangrove flats.
• SPECIFIC LITHOLOGY: Bioclastic limestone beds with in-situ fossils, some white mudstones (unfossiliferous), grainstones, and partly dolomitized packstones. LITHIFICATION: Poorly lithified, based on figured specimens.

Size class: macrofossils

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 75607: 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.
Gastropoda
 Opisthobranchia - Cylichnidae
Cylichnella duqmensis n. sp. Harzhauser 2007 snail
 Neogastropoda - Volutidae
Athleta cf. ficulina Lamarck 1811 volute
 Neogastropoda - Terebridae
Terebra perturrita Sacco 1891 auger snail
 Stromboidea - Rostellariidae
Varicospira mordax Martin 1916 snail
Varicospira zuschini n. sp. Harzhauser 2007 snail
 Xenophoroidea - Xenophoridae
Xenophora cf. deshayesi Michelotti 1847 carrier shell
 Sorbeoconcha - Batillariidae
Granulolabium plicatum BruguiƩre 1792 snail
 Sorbeoconcha - Cerithiidae
Cerithium cf. progoensis Martin 1916 cerith snail
"Campanile pseudoobeliscus" = Cerithium pseudoobeliscus Grateloup 1832 cerith snail
Rhinoclavis submelanoides Michelotti 1861 cerith snail