by Michal Zaton, Sosnowiec & Agnieszka Piechota, Sosnowiec
ZATON, M. & PIECHOTA, A. (2003): Carnian (Late Triassic) charophyte
flora of the Paleorhinus biochron at Krasiejów (SW Poland). Freiberger Forschungshefte
C 499: Paläontologie, Stratigraphie, Fazies (11): 43-51; Freiberg.
Sediments from around the bone-bearing horizon of Late Carnian age at Krasiejów,
south-western Poland, include an abundant charophyte flora preserved as calcitized
oospores (gyrogonites). The assemblage consists of four organ-species: Stellatochara
germanica KOZUR & REINHARDT, Stomochara starozhilovae (KISIELEVSKY), Porochara
triassica (SAIDAKOVSKY) and variable morphologically Stenochara kisielevkyi BILAN.
The most abundant assemblage lived during sedimentation of the bone-bearing bed.
Higher in the succession, charophyte numbers dropped drastically due to environmental
change to more saline or more turbulent conditions. The preliminary geochemical
analysis has shown that an increase in salinity might have been the main limiting
factor of charophyte growth.