Traits taxon details
original description
Kobayashi, T. (1928). Ordovician fossils from Corea and South Manchuria. <em>Japanese Journal of Geology and Geography.</em> 5(4): 173-212 ["1927"]. [details]
basis of record
Niko, S.; Sone, M.; Leman, M. S. (2019). Ordovician Orthocerida and Pseudorthocerida (Cephalopoda: Nautiloidea) from the Lower Setul Limestone of the Langkawi Islands, Malaysia. <em>Journal of Systematic Palaeontology.</em> 18(5): 381-414., available online at https://doi.org/10.1080/14772019.2019.1608599 page(s): 389 [details] Available for editors 
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