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Rotodiscoceras langdaiense Zheng 1981 (ceratite)

Cephalopoda - Ammonoidea - Pleuronodoceratidae

PaleoDB taxon number: 208001

Full reference: Z. G. Zheng. 1981. Uppermost Permian (Changhsingian) ammonoids from western Guizhou. Acta Palaeontologica Sinica 20(2):107-114

Belongs to Rotodiscoceras according to Z. G. Zheng 1981

Sister taxa: Rotodiscoceras asiaticum, Rotodiscoceras dushanense, Rotodiscoceras guizhouense, Rotodiscoceras hubeiense, Rotodiscoceras kwangsiense, Rotodiscoceras latilobatum, Rotodiscoceras longilobatum, Rotodiscoceras torulosum, Rotodiscoceras wangcangense

Type specimen: NIGP 34453. Its type locality is Heilajia Section HP37-6, Langdai County, which is in a Changhsingian carbonate limestone in the Changxing Formation of China.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 17.2, shell diameter 53.3