THE FIRST DISCOVERY OF TRIASSIC ROVEACRINIDS IN CHINA AND ITS SIGNIFICANCE

The roveacrinids,which were discovered for the first time in China,are reported in this paper.Their fossils were found on the bedding plane of black micrites of the late Triassic lower Xiaowa Formation in Guanling County,Guizhou.Two species,i.e.,Osteocrinus cf.virgatus Kristan-Tollmann,1970 and Osteocrinus spinosus Kristan-Tollmann,1970,are described.The taphonomy of Osteocrinus showing anoxic environment for its preservation,indicates that Osteocrinus is a pelagic crinoid.It can be concluded with confidence that Osteocrinus and Saccocoma tenella have similar life style because they are similar in morphology.

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P618.130.2