Eggenburgium
The Eggenburgium (also Eggenburg stage, Eggenburgia) is a regional chronostratigraphic stage of the Miocene ( Neogene ) in the central Paratethys area. It is roughly correlated with the lower part of the international chronostratigraphic level of the Burdigali . In absolute numbers, the Eggenburgium can be placed in the period from 20.8 to 18.3 million years. In the central Paratethys, the regional level of the Eggenburgium is followed by the regional level of the Ottnangium ; underneath is the regional level of the egerium .
Naming and stratotype
The stage is named after the city of Eggenburg in Austria . The type profile (stratotype): Loibersdorf (municipality of Gars am Kamp) is also located in the vicinity . The name and stage was proposed in 1968 by the Austrian geologist and paleontologist Fritz F. Steininger and the Czech geologist Ján Seneš in 1968.
definition
The lower limit of the Eggenburgium is defined in the Paratethys area with the onset of a typical scallop fauna: Pecten beudanti , Pecten pseudobeudanti , Pecten hornensis , Chlamys holgeri , Chlamys imcomparabilis and Chlamys palmata . The upper limit (and at the same time the lower limit of the Ottnangium ) is defined by the appearance of the scallop Flabellipecten hermannensis , Chlamys submalvinae , Chlamys pavonacea , Chlamys albina and Pecten fotensis . The level therefore corresponds to the lower part of the international Burdigalium level.
literature
- Fritz Steininger and Ján Senes (eds.): Chronostratigraphy and Neostratotypes Miocene of the central Paratethys. Volume II M 1 Eggenburgien The Eggenburg layer group and its stratotype. 827 pp., Slovak Academy of Sciences, Bratislava 1971.