ASGP (2012), vol. 82: 105–120

ICHNOLOGY OF CZARNA SHALE FORMATION (CAMBRIAN, HOLY CROSS MOUNTAINS, POLAND)

Michał STACHACZ

Institute of Geological Sciences, Jagiellonian University, Oleandry 2a, 30-063 Kraków, Poland, e-mail: michal.stachacz at uj.edu.pl

Stachacz, M., 2012. Ichnology of Czarna Shale Formation (Cambrian, Holy Cross Mountains, Poland). Annales Societatis Geologorum Poloniae, 82: 105–120.

Abstract: Ten ichnogenera and seven ichnospecies are described from the Czarna Shale Formation, possibly representing the Terreneuvian and Cambrian Series 2 of the Holy Cross Mountains. Moreover, five other ichnotaxa are described in open nomenclature. Phycodes circinatus, ?Taenidium isp., Trichichnus linearis and ?Dictyodora isp. are described from the Cambrian of the Holy Cross Mountains for the first time. The stratigraphic ranges of Trichichnus linearis and Phycodes circinatus are extended. The trace fossil assemblage and associated, sedimentological features point to deposition in the upper and lower offshore. Periodic, anoxic events may have occurred on the sea bed.