Gastropoda - Epitonioidea - Epitoniidae

Alternative combination: Epitonium posoensis

Full reference: F. M. Anderson and B. Martin. 1914. Neocene record in the Temblor Basin, California, and Neocene deposits of the San Juan District, San Luis Obispo County. Proceedings of the California Academy of Sciences, Fourth Series 4(3):15-112

Belongs to Epitonium (Cirsotrema) according to J. W. Durham 1937

See also Anderson and Martin 1914

Sister taxa: Cirsotrema (Cirsotremopsis), Cirsotrema (Coroniscala), Cirsotrema (Plastiscala), Cirsotrema (Propescala), Cirsotrema (Rectacirsa), Cirsotrema (Tioria), Cirsotrema cirritum, Cirsotrema crassicostatum, Cirsotrema dalli, Cirsotrema diversiformis, Cirsotrema dubiosa, Cirsotrema fimbriosa, Cirsotrema funiculus, Cirsotrema gagei, Cirsotrema hauniensis, Cirsotrema miovaricosum, Cirsotrema pleiophylla, Cirsotrema preyoungi, Cirsotrema tenuisculptum, Cirsotrema togatum, Cirsotrema varicosa, Epitonium (Cirsotrema) clallamense, Epitonium (Cirsotrema) howei, Epitonium (Cirsotrema) pasoense, Epitonium (Cirsotrema) saundersi, Scala (Cirsotrema) subtenuilamella

Type specimen: CAS 144

Ecology: slow-moving low-level epifaunal carnivore

Distribution: found only at CAS loc. 65, northeast of Barker's Ranch (Miocene of California)

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Specimen images are retrieved through the ePANDDA API.