Melk/Wachberg [Melk Formation] (Oligocene of Austria)

Where: Austria (48.2° N, 15.4° E: paleocoordinates 46.3° N, 14.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

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

• STRATIGRAPHY: From the Melk Formation, which conformably overlies the Peilach Formation. AGE: Late Egerian age is inferred for the Melk Formation, based on it immediately overlying the Peilach Formation. Assigned here to the Chattian. STRATIGRAPHIC POSITION: From layer 9 of Roetzel (1983).

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, concretionary, sideritic, yellow sandstone

• ENVIRONMENT: Reflects littoral to shallow sublittoral conditions.
• SPECIFIC LITHOLOGY: Yellowish sand with abundant concretions, limonitic. LITHIFICATION: Lithified, on the basis of preservation as casts and moulds.

Size class: macrofossils

Preservation: cast, mold/impression, concretion

Collected by Roetzel; reposited in the NHMW

Collection methods: surface (in situ),

• COLLECTORS: Collected by Roetzel (1980's). REPOSITORY: Inst. of Pal. Vienna, Geol. Surv. Austria Vienna, and Mus. Nat. Hist. Vienna.

Primary reference: M. Harzhauser and O. Mandic. 2001. Late Oligocene gastropods and bivalves from the Lower and Upper Austrian Molasse Basin. Osterreichische Akademie der Wissenschaften, Schriftenreihe der Erdwissenschaftlichen Komimissionen 14:671-795 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77736: authorized by Austin Hendy, entered by Austin Hendy on 17.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGEL Exhaustive for Mollusca. NOMENCLATURE: Nomenclature follows modern usage, with revisions and new taxonomic descriptions in present manuscript. KEY: r - rare; f - frequent; a - very abundant.
Bivalvia
 Ostreida - Ostreidae
 Mytilida - Mytilidae
 Cardiida - Arcticidae
 Cardiida - Veneridae
 Cardiida - Cardiidae
"Habecardium tenuisulcatum" = Laevicardium (Habecardium)
"Habecardium tenuisulcatum" = Laevicardium (Habecardium) cockle
Gastropoda
 Neogastropoda - Fasciolariidae
Euthriofusus cf. szontaghi Noszky 1936 snail
 Naticoidea - Naticidae
Euspira cf. helicina Brocchi 1814 moon snail
 Sorbeoconcha - Potamididae
"Tympanotonos margaritaceus" = Mesohalina margaritaceus
"Tympanotonos margaritaceus" = Mesohalina margaritaceus Brocchi 1814 horn snail
 Sorbeoconcha - Batillariidae
Granulolabium plicatum BruguiƩre 1792 snail
 Trochoidea - Trochidae
Jujubinus aff. multicingulatus Sandberger 1860 top snail