MolluscaBase taxon details
Aylacostoma sigmachilum (Pilsbry & Olsson, 1935) †
1517745 (urn:lsid:marinespecies.org:taxname:1517745)
accepted
Species
Aylacostoma sigmachilus (Pilsbry & Olsson, 1935) † · unaccepted > incorrect grammatical agreement of specific epithet
Hemisinus sigmachilus Pilsbry & Olsson, 1935 † · unaccepted > superseded combination
fossil only
(of Hemisinus sigmachilus Pilsbry & Olsson, 1935 †) Pilsbry, H. A. & Olsson, A. A. (1935). Tertiary fresh-water mollusks of the Magdalena Embayment, Colombia. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 87: 7-39.
page(s): 11-12, pl. 2, figs 10, 10a, 11 [details] Available for editors
[request]
page(s): 11-12, pl. 2, figs 10, 10a, 11 [details] Available for editors

Holotype (of Hemisinus sigmachilus Pilsbry & Olsson,...
, Type locality contained in Colombia
Holotype (of Hemisinus sigmachilus Pilsbry & Olsson, 1935) ANSP 13091 [details]
type locality contained in Colombia [from synonym] [view taxon] [details]
MolluscaBase eds. (2025). MolluscaBase. Aylacostoma sigmachilum (Pilsbry & Olsson, 1935) †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1517745 on 2025-09-11
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original description
(of Hemisinus sigmachilus Pilsbry & Olsson, 1935 †) Pilsbry, H. A. & Olsson, A. A. (1935). Tertiary fresh-water mollusks of the Magdalena Embayment, Colombia. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 87: 7-39.
page(s): 11-12, pl. 2, figs 10, 10a, 11 [details] Available for editors
[request]
page(s): 11-12, pl. 2, figs 10, 10a, 11 [details] Available for editors





Holotype (of Hemisinus sigmachilus Pilsbry & Olsson, 1935) ANSP 13091 [details]