Fig. 2From: Roveacrinida (Crinoidea) from Late Triassic (early Carnian) black shales of Southwest ChinaStratigraphy and conodont zonation of the Middle and Upper Triassic in southwest Guizhou. The beds with Osteocrinus are in the upper unit of the Lower Xiaowa Formation containing the Lagerstätte (after Wang et al. 2008)Back to article page