Bakonyjákó (Eocene of Hungary)

Where: Hungary (47.2° N, 17.6° E: paleocoordinates 40.4° N, 15.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Szoc Limestone Formation, Lutetian (47.8 - 41.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, massive, shelly/skeletal, gray, yellow limestone

• The lowermost layers with large masses of alveolinids and calcareous algae (Corallinaceae, Dasycladaceae) point to shallow water around 10 m deep. Up section, the algae disappear gradually (first the Dasycladaceae, later the Corallinaceae). Alveolinids also disappear, while nummulitids and discocyclinids become more common. Glauconitic layers at the top-most part of the formation were deposited near the shelf break at around 130 m depth.
• Massive, yellowish grey carbonate with larger foraminifers (mainly Nummulites,

•Operculina, Alveolina, Discocyclina) commonly in rock-forming quantities. Lithified based on fossil preservation.

Size class: macrofossils

Collected by L. Loczy

• Repository: Geological Museum of the Hungarian Geological Institute (GMHGI)

Primary reference: M. A. Bitner, A. Dulai, and A. Galácz. 2011. Middle Eocene brachiopods from the Szoc Limestone Formation (Bakony Mountains, Hungary), with a description of a new genus. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 259:113-128 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190309: authorized by Matthew Clapham, entered by Matthew Clapham on 04.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Terebratulidae
Gryphus kickxii
Gryphus kickxii Galeotti 1837