Molluscan clay, Eger - David (1999) (Oligocene of Hungary)

Also known as Molluscan clay

Where: Hungary (46.0° N, 17.0° E: paleocoordinates 44.0° N, 15.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Oligocene (28.4 - 23.0 Ma)

• The lithological sequence is as followes: glauconitic, tuffaceous sandstone; MOLLUSCAN CLAY; layers of marine silty, fine-grained sandstone (x layer); layers of marine limonitic sandstone (k layer); alternation fo coarse sand, carbonaceous clay and a thin gravelly intercalation (c layer)

• bed-level stratigraphic resolution

Environment/lithology: coastal; shelly/skeletal claystone

• No comments.
• Molluscan claystone

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: bulk, quarrying,

• Collected for investigation of boreholes

Primary reference: A. David. 1999. Predation by naticid gastropods on late Oligocene (Egerian) molluscs collected from Wind Brickyard, Eger, Hungary. Malakologiai Tajekoztato 17:11-19 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 41532: authorized by Austin Hendy, entered by Austin Hendy on 15.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Representative of molluscan taxa. Many non-predated gastropods, bivalves, and some cephalopods are not mentioned.
 Carditida - Crassatellidae
 Carditida - Carditidae
 Pholadida - Corbulidae
"Corbula basteroti" = Caryocorbula basteroti, "Corbula gibba" = Corbula (Varicorbula) gibba
"Corbula basteroti" = Caryocorbula basteroti Hörnes 1870 clam
"Corbula gibba" = Corbula (Varicorbula) gibba Oliva 1792 clam
 Neogastropoda - Nassariidae
"Hinia schlotheimi" = Nassarius (Hinia)
"Hinia schlotheimi" = Nassarius (Hinia) snail
 Neogastropoda - Volutidae
Volutilithes permulticostata Telegdi-Roth 1914 volute
 Neogastropoda - Turridae
 Vanikoroidea - Eulimidae
 Naticoidea - Naticidae
Natica millepunctata Sacco 1890 moon snail
Subspecies: Natica millepuncata tigrina
Polinices catena moon snail
Subpsecies: Polinices catena helicina
 Truncatelloidea - Tornidae
 Sorbeoconcha - Cerithiidae
Bittium spina Partsch 1856 cerith snail
Subspecies: Bittium spina agriense
 Heterostropha - Acteonidae
"Actaeon punctatosulcatus" = Acteon
"Actaeon punctatosulcatus" = Acteon snail
 Pyramidelloidea - Pyramidellidae
 Dentaliida - Fustiariidae
 Dentaliida - Dentaliidae