Randeck Maar, quarry of Oskar Fraas, light tuffites (marginal, stage 2T) (Miocene of Germany)

Where: Baden-Württemberg, Germany (48.6° N, 9.5° E: paleocoordinates 48.8° N, 8.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Randeck Maar Formation, MN 5 (16.0 - 13.7 Ma)

• Early/Middle Miocene (Burdigalian, Karpatian, MN 5, ca. 16–18 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: crater lake; tuff and limestone

• marginal tuffites

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Primary reference: R. B. Salvador, M. W. Rasser, and O. Höltke. 2015. Fossil gastropods from Miocene Lake Randeck Maar and its hinterland (SW Germany). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 277(3):251-273 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172950: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 04.09.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Sorbeoconcha - Pomatiidae
Pomatias conicus Klein 1853 periwinkle
 Heterostropha - Lymnaeidae
Lymnaea cf. dilatata Noulet 1854 snail
 Stylommatophora - Truncatellinidae
? Truncatellina sp. Lowe 1852 slug
 Stylommatophora - Chondrinidae
Granaria sp. Held 1837 slug
 Stylommatophora - Vertiginidae
Negulus suturalis Sandberger 1858 slug
 Stylommatophora - Gastrocoptidae
 Stylommatophora - Cochlicopidae
"Cochlicopa loxostoma" = Hypnophila loxostoma
"Cochlicopa loxostoma" = Hypnophila loxostoma Klein 1853 slug
 Stylommatophora - Enidae
 Stylommatophora - Valloniidae
Vallonia cf. lepida Reuss 1849 slug
 Stylommatophora - Vitrinidae
Vitrina suevica Sandberger 1876 slug
 Stylommatophora - Zonitidae
Archaeozonites costatus Sandberger 1876 true glass snail
 Stylommatophora - Filholiidae
Triptychia randeckiana Kranz 1908 slug
 Stylommatophora - Helicodontidae
"Helicodonta involuta" = Protodrepanostoma involutum
"Helicodonta involuta" = Protodrepanostoma involutum Thomä 1845 slug
 Stylommatophora - Trissexodontidae
 Stylommatophora - Elonidae
Apula coarctata Klein 1853 slug
 Stylommatophora - Hygromiidae
"Leucochroopsis kleini" = Leucochroopsis kleinii
"Leucochroopsis kleini" = Leucochroopsis kleinii Klein 1847 slug
 Stylommatophora - Helicidae
Palaeotachea renevieri, "Megalotachea silvana" = Palaeotachea silvana
Palaeotachea renevieri Maillard 1892 slug
"Megalotachea silvana" = Palaeotachea silvana Klein 1853 slug
 Stylommatophora - Oleacinidae
Pseudoleacina eburnea Klein 1853 slug
 Stylommatophora - Spiraxidae
Palaeoglandina gracilis Zieten 1830 slug
 Stylommatophora - Subulinidae
Opeas cf. minutum Klein 1853 slug
 Pulmonata - Discidae
Discus pleuradrus Bourguignat 1881 disk snail