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Species / Tibia Samanaensis


Original description of Tibia samanaensis by Cox, 1930:

  • "Shell of medium size for the genus, fairly stout, with a regularly conical spire. 'Whorls very feebly convex, nearly fiat, their diameter about two and a half times their height; sutures linear, unimpressed. Last whorl with a very gibbous swelling on the side opposite to the labrum, the suture rising considerably above this swelling, and descending again towards the aperture. No ornamentation except a series of rounded varices on the early whorls, numbering two to every whorl, and approximately aligned down opposite sides of the shell, although not always absolutely corresponding from one whorl to the next; varices absent from penultimate and last whorls, which are quite smooth. Growth-lines fairly conspicuous, curved with a forward-facing concavity, and in their general direction procurrent towards the upper suture at, an angle of about 70. Aperture unknown intact; posterior canal narrow, adhering to the last whorl, but apparently not long enough to reach the penultimate whorl."

Locus typicus: Samana Range, Hangu District, Khyber Pakhtunkhwa Province (formerly known as North-West Frontier Province, India), Pakistan

Stratum typicum: Hangu Shales, marginal marine shale in the Hangu Formation of Pakistan, Selandian/Thanetian, Paleocene


  • L. R. Cox. 1930. The fossil fauna of the Samana Range and some neighbouring areas: Part VIII. The Mollusca of the Hangu Shales. Memoirs of the Geological Suvery of India Mem., Palaeontol. Ind. N.S. 15, 129-222.

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