Dicharax (?) sonlaensis (Raheem & Schneider, 2017)

Pall-Gergely, Barna, Sajan, Sheikh, Tripathy, Basudev, Meng, Kaibaryer, Asami, Takahiro & Ablett, Jonathan D., 2020, Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue, ZooKeys 981, pp. 1-220 : 1

publication ID	https://dx.doi.org/10.3897/zookeys.981.53583
publication LSID	lsid:zoobank.org:pub:5194AAC8-6B8A-473F-8A41-470A60182A0B
persistent identifier	https://treatment.plazi.org/id/A8C73A58-C20D-570A-95DF-2151642E4E91
treatment provided by	ZooKeys by Pensoft (2020-10-29 22:48:38, last updated 2024-11-25 21:42:09)
scientific name	Dicharax (?) sonlaensis (Raheem & Schneider, 2017)
status

Treatment

Alycaeus sonlaensis Raheem & Schneider, 2018: 1305, figs 4A-J.

Type locality.

"The earliest Miocene (Aquitanian, 23-21 Ma) Hang Mon Formation at Hang Mon in Northern Vietnam".

Remarks.

This species fits the range of morphological variation of Dicharax fimbriatus , which is an extant species from the same geographic area. However, we find it more useful to keep this taxon as a separate species due to its age. The strikingly similar appearance of an early Miocene species (Aquitanian, 23-21 Ma) to species living today indicates the high level of morphological stability of Dicharax .