MolluscaBase taxon details
Protorotella yuantaniensis Makiyama, 1925 †
1767118 (urn:lsid:marinespecies.org:taxname:1767118)
accepted
Species
Umbonium ishiianum Yokoyama, 1930 † · unaccepted > junior subjective synonym
marine, brackish, fresh, terrestrial
fossil only
Makiyama J. (1925). The evolution of <i>Umbonium</i>. <em>Japanese Journal of Geology and Geography.</em> 3(3-4): 119–130. [details]
MolluscaBase eds. (2025). MolluscaBase. Protorotella yuantaniensis Makiyama, 1925 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1767118 on 2025-09-11
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original description
Makiyama J. (1925). The evolution of <i>Umbonium</i>. <em>Japanese Journal of Geology and Geography.</em> 3(3-4): 119–130. [details]
