Potamides (Tympanotomus)

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 : 195

nonndorfensis. Potamides (Tympanotomus) . Sacco, 1895

see Mesohalina margaritacea ( Brocchi, 1814)

* [ Potamides (Tympanotomus) margaritaceus (Br.) var. nonndorfensis Sacc. — Sacco 1895: 46.

Type material. Holotype, 1860/0050/0266, SL: 50.9 mm, MD: 24.2 mm, Natural History Museum Vienna ( Austria), Nonndorf ( Austria), illustrated in Ĥrnes (1855: pl. 42, figs 9a–b). Note that the figure in Ĥrnes (1855) is a composite.

Type locality. Nonndorf at Gars ( Austria) .

Stratigraphy. Early Miocene, Eggenburgian.

Discussion. The specimens from Nonndorf ( Austria) do not differ from the holotype of Mesohalina margaritacea ( Brocchi, 1814) .

Central Paratethys. Eggenburgian (Early Miocene): North Alpine-Carpathian Foreland Basin: Gauderndorf, Ķhnring, Maria Dreieichen, M̂rtersdorf, Mold, Nonndorf ( Austria) ( Steininger et al. 1973); Central Slovakia: Veľká Čausa ( Slovakia) ( Steininger et al. 1973).