Description distal fragments of cidaroid (?) spines
from pl. 3: figs 1-4 in
Wanner, J., Knipscheer, H.C.G. & Schenk, E. 1952. Zur Kenntnis der Trias der Insel Seran (Indonesien). Eclogae Geologicae Helvetiae, 45/1, 54-84.
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