Altotomaria, Ketwetsuriya & Karapunar & Charoentitirat & Nützel, 2020

Ketwetsuriya, Chatchalerm, Karapunar, Baran, Charoentitirat, Thasinee & Nützel, Al- Exander, 2020, Middle Permian (Roadian) gastropods from the Khao Khad Formation, Central Thailand: Implications for palaeogeography of the Indochina Terrane, Zootaxa 4766 (1), pp. 1-47 : 20

Altotomaria gen. nov.

Type species. Altotomaria reticulata sp. nov.

Etymology. From Latin alto, meaning high, referring both the high spire and the high position of the selenizone; -tomaria refers to the genus name Pleurotomaria , typical of the group Pleurotomarioidea to which the new genus belongs; gender feminine.

Diagnosis. Shell relatively high-spired; whorl face strongly ornamented with widely spaced spiral cords and narrowly spaced axial ribs or threads forming reticulate pattern; spiral cords more prominent than the axial ribs; periphery low on whorls in mature whorls, formed by strong spiral cord; selenizone above mid-whorl face, flush with the whorl face, bordered by two spiral cords, ornamented with widely spaced lunulae and median spiral thread; base anomphalous.

Remarks. Differences to other genera are discussed below.