MolluscaBase taxon details
Pachydon cuneatus (H. Woodward, 1871) †
1500180 (urn:lsid:marinespecies.org:taxname:1500180)
accepted
Species
Anisothyris (Pachydon) tumida Etheridge, 1879 † · unaccepted > junior subjective synonym
Anisothyris cuneata H. Woodward, 1871 † · unaccepted > superseded combination
Pachydon tumidus (Etheridge, 1879) † · unaccepted > junior subjective synonym
fossil only
(of Anisothyris cuneata H. Woodward, 1871 †) Woodward, H. (1871). The Tertiary Shells of the Amazons Valley. <em>The Annals and Magazine of Natural History, fourth series.</em> 7(37-38): 59-64, 101-109., available online at https://www.biodiversitylibrary.org/page/25119167#page/73/mode/1up
page(s): 107-108, pl. 5, fig. 8a, b [details]
page(s): 107-108, pl. 5, fig. 8a, b [details]
Type locality contained in Peru
, Note Two localities are mentioned in Conrad (1871),...
type locality contained in Peru [details]
Type locality Two localities are mentioned in Conrad (1871), whereas the second one seems more likely, since most of the material seems to come from there: "at Pebas, near the mouth of the Ambiyacu [or] nearly 30 miles below Pebas, on the south side of the Marafion, at Pichua, just west of Cochaquinas. The locality is about 2200 miles up the Amazon, and the shells appear to be more abundant even than at Pebas. They occur in that peculiar formation of fine laminated colored clays which is spread over the entire valley of the great river, and which Prof. Agassiz had pronounced 'Drift.'" [details]
MolluscaBase eds. (2024). MolluscaBase. Pachydon cuneatus (H. Woodward, 1871) †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1500180 on 2024-04-28
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original description
(of Anisothyris (Pachydon) tumida Etheridge, 1879 †) Etheridge, R. (1879). Notes on the Mollusca collected by C. Barrington Brown, Esq., A.R.S.M., from the Tertiary Deposits of Solimões and Javary Rivers, Brazil. <em>Quarterly Journal of the Geological Society.</em> 35: 82-88., available online at https://archive.org/stream/quarterlyjourna351879geol#page/82/mode/2up
page(s): 83, pl. 7, fig. 2 [details]
original description (of Anisothyris cuneata H. Woodward, 1871 †) Woodward, H. (1871). The Tertiary Shells of the Amazons Valley. <em>The Annals and Magazine of Natural History, fourth series.</em> 7(37-38): 59-64, 101-109., available online at https://www.biodiversitylibrary.org/page/25119167#page/73/mode/1up
page(s): 107-108, pl. 5, fig. 8a, b [details]
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): 249-251, figs 323-324 [details]
redescription Conrad, T. A. (1871). Descriptions of new fossil shells of the upper Amazon. <em>American Journal of Conchology.</em> 6: 192-198., available online at https://www.biodiversitylibrary.org/page/15854015
page(s): 197, pl. 10, fig. 12 [details]
page(s): 83, pl. 7, fig. 2 [details]
original description (of Anisothyris cuneata H. Woodward, 1871 †) Woodward, H. (1871). The Tertiary Shells of the Amazons Valley. <em>The Annals and Magazine of Natural History, fourth series.</em> 7(37-38): 59-64, 101-109., available online at https://www.biodiversitylibrary.org/page/25119167#page/73/mode/1up
page(s): 107-108, pl. 5, fig. 8a, b [details]
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): 249-251, figs 323-324 [details]
redescription Conrad, T. A. (1871). Descriptions of new fossil shells of the upper Amazon. <em>American Journal of Conchology.</em> 6: 192-198., available online at https://www.biodiversitylibrary.org/page/15854015
page(s): 197, pl. 10, fig. 12 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Two localities are mentioned in Conrad (1871), whereas the second one seems more likely, since most of the material seems to come from there: "at Pebas, near the mouth of the Ambiyacu [or] nearly 30 miles below Pebas, on the south side of the Marafion, at Pichua, just west of Cochaquinas. The locality is about 2200 miles up the Amazon, and the shells appear to be more abundant even than at Pebas. They occur in that peculiar formation of fine laminated colored clays which is spread over the entire valley of the great river, and which Prof. Agassiz had pronounced 'Drift.'" [details]
