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Triassic echinoids of the Holy Cross Mountains (southern Poland)

by Mariusz A. Salamon, Sosnowiec & Robert Niedzwiedzki, Wroclaw

SALAMON, M.A. & NIEDZWIEDZKI, R. (2003): Triassic echinoids of the Holy Cross Mountains (southern Poland). Freiberger Forschungshefte C 499: Paläontologie, Stratigraphie, Fazies (11): 35-42; Freiberg.

Abstract

Spines and plates of the tests of the echinoids Triadotiaris grandaeva (ALBERTI, 1834), Triadocidaris sp. cf. Triadocidaris transversa (MEYER, 1851) and Echinoidea gen. et sp. indet. were found in sediments of the Röt and Muschelkalk in the Holy Cross Mountains. Triadocidaris sp. cf. Triadocidaris transversa has not previously been recorded from this locality. This is the first record of Polish echinoids to be described from Röt (Triadotiaris grandaeva) and Upper Muschelkalk (Echinoidea sp. et gen. indet.) sediments. The occurrence of echinoids in the Röt of the Holy Cross Mountains and their absence in exposures further west (Upper and Lower Silesia) suggest a migration into the Germanic Basin from the east, the region of the Holy Cross Mountains. Numerous echinoid elements in the Upper Muschelkalk prove that the class was common not only in Germany, but also in the eastern part of the Germanic Basin.