Skip to main content

A diverse crinoid fauna from the Middle Jurassic (Upper Bajocian–Callovian) of the Polish Jura Chain and Holy Cross Mountains (south-central Poland)

Abstract.

A systematic account of a diverse crinoid fauna from the Middle Jurassic (Upper Bajocian–Callovian) of the Polish Jura Chain and Holy Cross Mountains (south-central Poland) is presented. The description is supplemented with a list of all crinoid species found hitherto in the Tatra Mountains and the Pieniny Klippen Belt (Poland), which were a part of the northern margin of the Tethys during Middle Jurassic time. Balanocrinus hessi seems to be endemic and established its own population in the epicontinental sea. Other stalked crinoids entered from the Tethys through the East-Carpathian Gate or from a westerly way, and constitute a typical Mediterranean fauna. Stemless forms are regarded to be unsuccessful immigrants. The crinoid remains are preserved mostly as columnals and pluricolumnals, the majority of which are encrusted and bored by various epi- and endobionts. No encrustation or boring, however, occurred during the lifetime of these crinoids. The association of well-preserved columnals/pluricolumnals with the broken and abraded isolated columnals, may be the evidence of a within-habitat time-averaging of the crinoid assemblages.

Zusammenfassung.

Aus mitteljurassischen (Bajocian–Callovian) Sedimenten des südlichen Zentralpolens (Krakow–Częstochowa Hochland und Heilig-Kreuz Gebirge) wird eine diverse Crinoidenfauna systematisch beschrieben und stratigraphisch eingestuft. Die Beschreibung wird durch eine Zusammenstellung sämtlicher Crinoiden-Spezies ergänzt, die bislang im Tatra-Gebirge und im Pieniny Klippen-Gürtel gefunden wurden. Beide Regionen waren während des Mittleren Jura Teil des Nordrandes der Tethys. Balanocrinus hessi bildete eigenständige Populationen in diesem epikontinentalen Meeresbereich und scheint endemisch gewesen zu sein. Andere gestielte Crinoiden drangen aus der Tethys durch die Ost-Karpaten-Pforte oder aus westlicher Richtung vor und stellen typische mediterrane Faunenelemente dar. Ungestielten tethyalen Formen gelang offensichtlich keine Einwanderung. Die Assoziation von gut erhaltenen Columnalien/Pluricolumnalien mit zerbrochenen und abgenutzten Columnalien könnte als ‘time averaging’ der Crinoidenvergesellschaftungen gesehen werden.

Author information

Affiliations

Authors

Corresponding author

Correspondence to Mariusz A. Salamon.

Additional information

Manuscript received October 17, 2005 Manuscript accepted January 18, 2007

Editorial handling: J.-P. Billon-Bruyat & I. Stössel-Sittig

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Salamon, M.A., Zatoń, M. A diverse crinoid fauna from the Middle Jurassic (Upper Bajocian–Callovian) of the Polish Jura Chain and Holy Cross Mountains (south-central Poland). Swiss j geosci 100, 153–164 (2007). https://doi.org/10.1007/s00015-007-1207-3

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00015-007-1207-3

Keywords:

  • crinoids
  • Middle Jurassic
  • Poland
  • palaeobiogeography
  • taphonomy
  • epibiontism