MolluscaBase name details
Trigonia hosourensis Yokoyama, 1904 †
854187 (urn:lsid:marinespecies.org:taxname:854187)
unaccepted > superseded combination
Species
marine, brackish, fresh, terrestrial
fossil only
Yokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13. [details] 
Type locality contained in Honshu
, Note Hosoura, Province of Rikuzen (Niranohama,...
type locality contained in Honshu [details]
Type locality Hosoura, Province of Rikuzen (Niranohama, Utatsu-cho, Motoyoshi-gun, Miyagi Prefecture), Japan [details]
MolluscaBase eds. (2025). MolluscaBase. Trigonia hosourensis Yokoyama, 1904 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=854187 on 2025-09-11
Date
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original description
Yokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13. [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Hosoura, Province of Rikuzen (Niranohama, Utatsu-cho, Motoyoshi-gun, Miyagi Prefecture), Japan [details]
