Shahrezanautilus Korn & Hairapetian, 2025, gen. nov.

Genus Shahrezanautilus gen. nov. urn:lsid:zoobank.org:act: 449ADF07-95B8-481E-8C4B-4114FD3DC347 New genus E – Korn 2025: 69. Type species Shahrezanautilus weyeri gen. et sp. nov. Diagnosis Genus of the family Julfanautilidae with thinly pachyconic, subinvolute conch. Conch rapidly increasing in height with an extraordinarily high coiling rate (WER higher than 3.00). Whorls weakly embracing, whorl profile weakly depressed. Venter broadly rounded, umbilical wall flat and steep. Adult ornament with extremely fine growth lines. Septa without inflexions, slightly concave. Suture line simple with a shallow external lobe and a broadly rounded lateral lobe. Etymology Named after the city of Shahreza, the type locality of the type species. Included species Central Iran (this paper): Shahrezanautilus weyeri gen. et sp. nov., Wuchiapingian; Shahrezanautilus ghaderii gen. et sp. nov., Wuchiapingian. Remarks Shahrezanautilus gen. nov. differs from Julfanautilus in the broadly rounded venter, which in Julfanautilus has a concave shape.