Gyepukajan, Hobaj Hill (Eocene of Hungary)

Where: Hungary (47.0° N, 17.3° E: paleocoordinates 40.3° N, 15.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Assilina spira marl, Middle Lutetian. N. obesus-baconicus and N. lorioli assemblage zones.

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified marl

• 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.

Size class: macrofossils

Collected by Gabor Kopek

• Repository: Paleontological and Geological Department of the Hungarian Natural History Museum (HNHM)

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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190270: authorized by Matthew Clapham, entered by Matthew Clapham on 04.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Terebratulidae
Gryphus kickxii Galeotti 1837