St Margarethen - Layer A (Potamides hartbergensis 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: fluvial; unlithified, pebbly sandstone

• DISTRIBUTION: Fluctuating limnic-fluvial to oligohaline, brackish-littoral, and marine-littoral environments.
• SPECIFIC LITHOLOGY: Pelitic sand, with pebbles, badly sorted. 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 77428: 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
 Cerithioidea - Potamididae
 Sorbeoconcha - Hydrobiidae
 Sorbeoconcha - Pomatiidae
Pomatias conicus Klein 1853 periwinkle
 Heterostropha - Lymnaeidae
Stagnicola cf. bouilleti Michaud 1855 snail
 Heterostropha - Planorbidae
Ferrissia wittmanni Schlickum 1964 snail
Gyraulus vermicularis Stoliczka 1862 snail
 Stylommatophora - Strobilopsidae
 Stylommatophora - Valloniidae
Vallonia subpulchella Sandberger 1874 slug
 Stylommatophora - Limacidae
Limax sp. Linnaeus 1758 slug
 Stylommatophora - Vitrinidae
"Semilimax intermedius" = Phenacolimax intermedius
"Semilimax intermedius" = Phenacolimax intermedius Reuss 1849 slug
 Stylommatophora - Helicidae
Cepaea sp. Held 1838 slug
 Heterostropha - Carychiidae
 Heterostropha - Valvatidae
Valvata pseudoadeorbis Sinzov 1880 snail