St Margarethen - Layer A (Potamides disjunctus assemblage) (Miocene of Austria)

Where: Austria (48.3° N, 14.3° E: paleocoordinates 48.6° N, 13.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Sarmatian (12.7 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: Currently, an about 30-m-thick succession of gravel, marly sand and scattered detritic limestones is exposed at the section "Zollhaus". The sediments in the lower part of the section represent the ecostratigraphic molluscan zone "Mactra Zone" of the Late Sarmatian (zonation sensu Papp,1954). THICKNESS: AGE: Sarmatian (Late Middle Miocene). STRATIGRAPHIC POSITION: From group of beds in lower part of section.

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; unlithified, silty claystone

• DISTRIBUTION: Fluctuating limnic-fluvial to oligohaline, brackish-littoral, and marine-littoral environments.
• SPECIFIC LITHOLOGY: Silty clay. LITHIFICATION: Unlithified, based on figured specimens.

Size class: macrofossils

Collected by Höck, Harzhauser, Kowalke; reposited in the NHMW

Collection methods: bulk,

• COLLECTOR: G, Höck, M. Harzhauser, and T. Kowalke. REPOSITORY: Museum of Natural History Vienna (NHMW).

Primary reference: M. Harzhauser and T. Kowalke. 2002. Sarmatian (Late Middle Miocene) Gastropod Assemblages of the Central Paratethys. Facies 46:57-82 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 77423: authorized by Austin Hendy, entered by Austin Hendy on 11.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to characteristic taxa, including gastropoda and bivalvia. NOMENCLATURE: Authoritative publication, with modern nomenclature, subgenus and species-level assignments.
Gastropoda
 Trochoidea - Trochidae
Gibbula buchi Dubois 1831 top snail
Gibbula podolica Dubois 1831 top snail
 Opisthobranchia - Cylichnidae
Acteocina lajonkaireana Basterot 1825 barrel-bubble
 Opisthobranchia - Retusidae
"Cylichnina elongata" = Retusa (Cylichnina)
"Cylichnina elongata" = Retusa (Cylichnina) snail
 Patellida - Lottiidae
Acmaea soceni Jekelius 1944 limpet
 Cerithioidea - Cerithiidae
Cerithium jekeliusi Svagrovsky 1971 cerith snail
 Cerithioidea - Batillariidae
Granulolabium bicinctum Brocchi 1814 snail
 Cerithioidea - Potamididae
 Sorbeoconcha - Hydrobiidae
Hydrobia frauenfeldi Hoernes 1865 snail
 Neogastropoda - Columbellidae
Mitrela agenta Harzhauser and Kowalke 2002 snail