Li, L-Z. (1984). Cephalopods from the upper Cambrian Siyangshan Formation of western Zhejiang. In: Stratigraphy and palaeontology of systemic boundaries in China Cambrian—Ordovician Boundary (1). pp. 187-265. Hefei: Anhui Science and Technology Publishing House.
481520
Li, L-Z.
1984
Cephalopods from the upper Cambrian Siyangshan Formation of western Zhejiang. In: <i>Stratigraphy and palaeontology of systemic boundaries in China Cambrian—Ordovician Boundary (1)</i>
pp. 187-265. Hefei: Anhui Science and Technology Publishing House