MolluscaBase taxon details
Onoba fortis Pilsbry & Olsson, 1941 †
575325 (urn:lsid:marinespecies.org:taxname:575325)
accepted
Species
marine, brackish, fresh, terrestrial
fossil only
Pilsbry, H. A. & Olsson, A. A. (1941). A Pliocene fauna from western Ecuador. <em>Proceedings of the Academy of Natural Science of Philadelphia.</em> 93: 1–79, 19 pls.
page(s): 44; plate 8, fig. 3 [details] Available for editors
[request]
page(s): 44; plate 8, fig. 3 [details] Available for editors
[request]
Holotype ANSP 13688
, Note Canoa formation, Punta Blanca (Ecuador)
Holotype ANSP 13688 [details]
From editor or global species database
Type locality Canoa formation, Punta Blanca (Ecuador) [details]
Stratigraphy The type locality could have been in early Pleistocene strata: "The Canoa Formation includes two members attributed by...
Stratigraphy The type locality could have been in early Pleistocene strata: "The Canoa Formation includes two members attributed by Pilsbry and Olsson (1941) to lower and upper Pliocene on the basis of molluscan biostratigraphy. More recently Bianucci et al. (1997) identify foraminiferal assemblages of the biochronozone N21 (Globigerinoides fistulosus zone) in both members, leading them to assign the Canoa Formation to the Late Pliocene (2.9–2.0 Ma)" [K. Pedoja et al., 2006)] [details]
MolluscaBase eds. (2021). MolluscaBase. Onoba fortis Pilsbry & Olsson, 1941 †. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=575325 on 2025-09-10
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original description
Pilsbry, H. A. & Olsson, A. A. (1941). A Pliocene fauna from western Ecuador. <em>Proceedings of the Academy of Natural Science of Philadelphia.</em> 93: 1–79, 19 pls.
page(s): 44; plate 8, fig. 3 [details] Available for editors [request]
basis of record Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls. [details]
page(s): 44; plate 8, fig. 3 [details] Available for editors
[request]basis of record Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls. [details]
Present Inaccurate Introduced: alien Containing type locality
Holotype ANSP 13688 [details]
From editor or global species database
Stratigraphy The type locality could have been in early Pleistocene strata: "The Canoa Formation includes two members attributed by Pilsbry and Olsson (1941) to lower and upper Pliocene on the basis of molluscan biostratigraphy. More recently Bianucci et al. (1997) identify foraminiferal assemblages of the biochronozone N21 (Globigerinoides fistulosus zone) in both members, leading them to assign the Canoa Formation to the Late Pliocene (2.9–2.0 Ma)" [K. Pedoja et al., 2006)] [details]Type locality Canoa formation, Punta Blanca (Ecuador) [details]
