Murata M. (1974). Taxonomic names, in Khumerspira, a new genus of Bellerophontidae, and some Middle Permian Gastropods from Cambodia. Journal of Geosciences, Osaka City University. 17(3):77-81.
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Murata M.
1974
Taxonomic names, in Khumerspira, a new genus of Bellerophontidae, and some Middle Permian Gastropods from Cambodia