MolluscaBase name details
Cyclas subtrigona Dunker, 1843 †
1542188 (urn:lsid:marinespecies.org:taxname:1542188)
unaccepted > superseded combination
Species
Cyclas Lamarck, 1798 accepted as Sphaerium Scopoli, 1777
marine, fresh, terrestrial
fossil only
Dunker, W. (1843). Ueber den norddeutschen sogenannten Wälderthon und dessen Versteinerungen. <em>Programm der höheren Gewerbschule in Cassel. Schulcursus von Michaelis 1843 bis Ostern 1844.</em> pp. 1-46.
page(s): 36 [details]
page(s): 36 [details]
Note "am Deister" (Lower Saxony, Germany)
From editor or global species database
Type locality "am Deister" (Lower Saxony, Germany) [details]
Status Status and classification unclear, not discussed in the literature of the 20th and 21st century; also, perhaps not a sphaeriid.
Status Status and classification unclear, not discussed in the literature of the 20th and 21st century; also, perhaps not a sphaeriid. [details]
MolluscaBase eds. (2025). MolluscaBase. Cyclas subtrigona Dunker, 1843 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1542188 on 2025-09-12
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original description
Dunker, W. (1843). Ueber den norddeutschen sogenannten Wälderthon und dessen Versteinerungen. <em>Programm der höheren Gewerbschule in Cassel. Schulcursus von Michaelis 1843 bis Ostern 1844.</em> pp. 1-46.
page(s): 36 [details]
page(s): 36 [details]
Present Inaccurate Introduced: alien Containing type locality
