Gebel Madrakah - Warak Fm (Oligocene of Oman)

Where: Oman (19.0° N, 57.8° E: paleocoordinates 13.4° N, 52.4° E)

• coordinate stated in text

• local area-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

• 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. LITHIFICATION: Poorly lithified, based on figured specimens.

Size class: macrofossils

Preservation: replaced with calcite

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 75608: 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
Omanidacna eos Harzhauser et al. 2008 cockle
Gastropoda
 Cephalaspidea - Bullidae
Bulla argosensis Harzhauser 2007 snail
 Architaenioglossa - Ampullinidae
Globularia cf. compressa Basterot 1825 snail
Warakia pilleri n. sp. Harzhauser 2007 snail
 Neogastropoda - Melongenidae
Melongena lainei Basterot 1825 snail
 Neogastropoda - Mitridae
Cancilla sp. n. sp.
Cancilla sp. n. sp. Swainson 1840 mitre shell
 Neogastropoda - Volutidae
Athleta cf. ficulina Lamarck 1811 volute
Lyria madrakahensis n. sp. Harzhauser 2007 volute
 Neogastropoda - Turbinellidae
Vasum omanicum n. sp. Harzhauser 2007 snail
 Neogastropoda - Turridae
Crassispira sp. n. sp. Swainson 1840 turrid
 Neogastropoda - Conidae
Conus aff. grateloupi d'Orbigny 1852 cone shell
"Conus aff. antiquus" = Lithoconus antiquus Lamarck 1810 cone shell
Conorbis protensus Michelotti 1861 cone shell
 Capuloidea - Capulidae
Capulus anceps Michelotti 1861 snail
 Stromboidea - Strombidae
"Strombus bernielandaui n. sp." = Persististrombus bernielandaui
"Strombus bernielandaui n. sp." = Persististrombus bernielandaui Harzhauser 2007 true conch
 Stromboidea - Seraphsidae
Seraphs cf. subconvolutus d'Orbigny 1852 snail
 Littorinoidea - Littorinidae
Tectarius elegans Faujas 1817 periwinkle
 Tonnoidea - Personidae
Distorsio aff. cancellina Lamarck 1803 snail
 Sorbeoconcha - Campanilidae
Campanile gigas Martin 1881 snail
 Sorbeoconcha - Potamididae
Terebralia bidentata Defrance 1832 horn snail
 Sorbeoconcha - Thiaridae
Bayania omanispinosa n. sp. Harzhauser 2007 snail
 Sorbeoconcha - Turritellidae
Turritella steiningeri n. sp., "Turritella (Haustator) conofasciata" = Turritella (Haustator) conofaciata, "Turritella (Haustator) cf. sedanensis" = Haustator sedanensis
Turritella steiningeri n. sp. Harzhauser 2007 turret shell
"Turritella (Haustator) conofasciata" = Turritella (Haustator) conofaciata Sacco 1895 turret shell
"Turritella (Haustator) cf. sedanensis" = Haustator sedanensis Martin 1905 turret shell
 Sorbeoconcha - Batillariidae
Pyrazisinus monstrosus Grateloup 1847 snail
 Sorbeoconcha - Cerithiidae
Cerithium lukenderi n. sp. Harzhauser 2007 cerith snail
Cerithium markusreuteri n. sp. Harzhauser 2007 cerith snail
"Campanile pseudoobeliscus" = Cerithium pseudoobeliscus Grateloup 1832 cerith snail
Rhinoclavis voglinoi Michelotti 1861 cerith snail
Rhinoclavis submelanoides Michelotti 1861 cerith snail
"Cerithium archiaci" = Cerithium (Ptychocerithium) archiaci Vredenburg 1928 cerith snail
 Trochoidea - Trochidae
Cantharidus (Beraua) elkeae n. sp. Harzhauser 2007 top snail
Tectus loryi d'Archaic and Haime 1853 top snail