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Hemisinus bituminifer

Gastropoda - Thiaridae

Taxonomy
Hemisinus bituminifer was named by Cooke (1919) [DISTRIBUTION: ?Oligocene-Miocene; Caribbean.]. Its type specimen is USNM 166993, a partial shell, and it is not a trace fossil. Its type locality is USNM 3652, 5312, which is in a Ypresian/Bartonian coastal tar in Cuba.

Sister species lacking formal opinion data
H. bizonatus, H. venezuelensis