Fig. 11From: Roveacrinida (Crinoidea) from Late Triassic (early Carnian) black shales of Southwest China Osteocrinus sinensis n. sp., Lower Xiaowa Formation, limestone bed, Xiaowa Village. a Ring of articulated secundibrachials with articulations, paratype; note coprolite at lower right, MHI 1879/1/1. b Secundibrachial with two adoral spines near lower facet, note corroded upper part exposing interior and coprolite to the left; MHI 1879/14/1. c Secundibrachial and conical aboral element (lower left), MHI 1879/4/7. Scales 1 mmBack to article page