MolluscaBase name details
Pachytoma tertiana Conrad, 1874 †
1063965 (urn:lsid:marinespecies.org:taxname:1063965)
unaccepted > superseded combination
Species
Pachytoma Swainson, 1840 accepted as Helicina Lamarck, 1799
fossil only
Conrad, T. A. (1874). Remarks on the Tertiary clay of the Upper Amazon with descriptions of new shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 1874: 25-32., available online at https://www.biodiversitylibrary.org/page/26361848
page(s): 31, pl. 1, fig. 11 [details]
page(s): 31, pl. 1, fig. 11 [details]
Note Conrad (1874) listed a few localities on the...
Type locality Conrad (1874) listed a few localities on the Upper Amazon in Peru on p. 26, but it's unclear from which of these localities the species derives from. [details]
MolluscaBase eds. (2021). MolluscaBase. Pachytoma tertiana Conrad, 1874 †. Accessed at: http://molluscabase.org/aphia.php?p=taxdetails&id=1063965 on 2025-09-12
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original description
Conrad, T. A. (1874). Remarks on the Tertiary clay of the Upper Amazon with descriptions of new shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 1874: 25-32., available online at https://www.biodiversitylibrary.org/page/26361848
page(s): 31, pl. 1, fig. 11 [details]
new combination reference Wesselingh, F.P. (2006). Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia. <em>Scripta Geologica.</em> 133: 19-290., available online at http://www.repository.naturalis.nl/document/41346
page(s): 166-168, figs 15c, 208-209 [details]
page(s): 31, pl. 1, fig. 11 [details]
new combination reference Wesselingh, F.P. (2006). Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia. <em>Scripta Geologica.</em> 133: 19-290., available online at http://www.repository.naturalis.nl/document/41346
page(s): 166-168, figs 15c, 208-209 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Conrad (1874) listed a few localities on the Upper Amazon in Peru on p. 26, but it's unclear from which of these localities the species derives from. [details]
