FreshGEN taxon details
original description
(of Clessinia subvariabilis Andrusov, 1923 †) Andrusov, N. (1923). Apsheronskiy yarus. <em>Trudy Geologicheskago Komiteta, novaya seriya.</em> 110: 1-294. page(s): 138-140, pl. 11, figs 28-29 [details] 
additional source
Ali-Zade, A.A. (1973). <i>Apsheron Azerbaydzhana</i> [Apsheronian of Azerbaijan]. Moskva: Nedra, 228 pp., 47 pls. page(s): 146, pl. 41, figs 1, 2 [details] Available for editors [request]
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