|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Epitoniidae
It was reranked as Scalaria (Cirsotrema) by Tate (1890); it was reranked as Scala (Cirsotrema) by Vredenburg (1928); it was reranked as Epitonium (Cirsotrema) by Durham (1937), Hertlein and Stong (1951) and Addicott (1970).
It was assigned to Scalaria by Tate (1890); to Scala by Vredenburg (1928); to Epitonium by Durham (1937), Hertlein and Stong (1951) and Addicott (1970); to Neotaenioglossa by Sepkoski (2002); and to Epitoniidae by Olsson (1967), Maxwell (1978), Squires (1984), Dushane (1988), Wilson (1993), Todd (2001), Wienrich (2001), Harzhauser (2002), Duerr (2004) and Darragh (2017).
|Year||Name and author|
|1890||Scalaria (Cirsotrema) Tate|
|1928||Scala (Cirsotrema) Vredenburg p. 402|
|1937||Epitonium (Cirsotrema) Durham p. 490|
|1951||Epitonium (Cirsotrema) Hertlein and Stong p. 89|
|1967||Cirsotrema Olsson p. 40|
|1970||Epitonium (Cirsotrema) Addicott p. 54|
|1978||Cirsotrema Maxwell p. 36|
|1984||Cirsotrema Squires p. 21|
|1988||Cirsotrema Dushane p. 56|
|1993||Cirsotrema Wilson p. 274|
|2001||Cirsotrema Wienrich p. 450|
|2002||Cirsotrema Harzhauser p. 93|
|2002||Cirsotrema Sepkoski, Jr.|
|2004||Cirsotrema Duerr p. 152|
|2017||Cirsotrema Darragh p. 55|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|J. W. Durham 1937||Shell thick and massive, sometimes very large; whorls convex, sutures deep; ornamented by thick axial varices, foliaceous or crenulated, more or less reflexed posteriorly, usually not continuous from whorl to whorl, but masking suture completely; primary spirals very coarse, often with finer spirals in interspaces; basal disk bounded by a very prominent posterior "enlargement" of the varices not continuous between any two varices; aperture almost circular; peristome thick and continuous although the inner lip may be somewhat thinner; ornamentation very variable. Living in Philippines and Oceanica.|