Traits taxon details
original description
(of Pachydon (Anisorhynchus) dispar Conrad, 1874 †) 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): 27, pl. 1. fig. 1 [details]
original description
(of Anisorhynchus jaenneti de Greve, 1938 †) de Greve, L. (1938). Eine Molluskenfauna aus dem Neogen von Iquitos am Oberen Amazonas in Peru. <em>Abhandlungen der Schweizerischen Palaeontologischen Gesellschaft.</em> 61: 1-133. page(s): 24-27, pl. 8, figs 6, 7, 9-17, 20, text-figs 2, 3 [details] Available for editors 
basis of record
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): 262-263, figs 338-341 [details]
|