Fossil range Exact Age uncertain: Popova (1981) attributed the fossil-bearing strata to the Yermakinskaya Formation, which she coarsely...
Fossil range Exact Age uncertain: Popova (1981) attributed the fossil-bearing strata to the Yermakinskaya Formation, which she coarsely classified into the Oligocene to Miocene ("Pg3-3? - N1"). No more information on the formation could be found. [details]
original descriptionPopova, S.M. (1981). Kaynozoyskaya kontinental'naya malakofauna yuga Sibiri i sopredel'nykh territoriy [The Cenozoic continental malacofauna of Southern Siberia and adjacent territories]. Nauka, Moskva, 188 pp. page(s): 52-53, textfig. 30 [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Fossil range Exact Age uncertain: Popova (1981) attributed the fossil-bearing strata to the Yermakinskaya Formation, which she coarsely classified into the Oligocene to Miocene ("Pg3-3? - N1"). No more information on the formation could be found. [details] Type locality "Nizhneye Priangar'ye, Yurokhtinskaya vpadina" [Lower Angara region, Yurokhta depression] (Russia) [details]
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