Potamides sumbarensis

Harzhauser, Mathias, Guzhov, Aleksandr & Landau, Bernard, 2023, A revision and nomenclator of the Cainozoic mudwhelks (Mollusca: Caenogastropoda: Batillariidae, Potamididae) of the Paratethys Sea (Europe, Asia), Zootaxa 5272 (1), pp. 1-241 : 211

publication ID	https://doi.org/ 10.11646/zootaxa.5272.1.1
publication LSID	lsid:zoobank.org:pub:1E54F7B0-76B1-4E66-8EB0-32685D378D08
persistent identifier	https://treatment.plazi.org/id/03A73336-91F1-F688-FF5D-FD514A4EFB7E
treatment provided by	Plazi
scientific name	Potamides sumbarensis
status

Treatment

sumbarensis View in CoL . Potamides . Kolesnikov, 1950

see Potamides caspius Andrussow, 1902 View in CoL

* Potamides sumbarensis View in CoL nov. sp. — Kolesnikov 1950: 93, pl. 12, figs 1 – 3.

Type material. Holotype, PIN No 2722/29, SL: 18.4 mm, 5.3 mm, Paleontological Institute of the Russian Academy of Sciences in Moscow.

Type locality. Sumbar River ( Turkmenistan) .

Stratigraphy. Late Pliocene/Pleistocene, Akchagylian.

Discussion. Kolesnikov (1950) established this name for slender shells with subcylindrical whorls and prominent beads. This morph is reminiscent of Potamides disjunctus (J. de C. Sowerby, 1832) but the huge stratigraphic gap of about 6 my makes a closer relation unlikely. Therefore, we interpret P. sumbarensis to be an atavistic morph of Potamides caspius , with which it co-occurs.

Eastern Paratethys. Akchagylian (Late Pliocene/Pleistocene): Caspian Basin: Chatma Lowland, Kvabebi, Nazarlebis-khevi ( Georgia) ( Dzhikiya 1977); Eldari Steppe area, Naftalan, Palantekyan Mountain Ridge ( Azerbaijan) ( Kolesnikov 1950); Danata, western spurs of the Kopet Dag, Small Balkhan, Sumbar River ( Turkmenistan) ( Kolesnikov 1950; Ali-Zade 1967, 1969).