Gastropoda - Sorbeoconcha - Ranellidae

Alternative combination: Nyctilochus impressus

Full reference: C. E. Weaver. 1905. Contribution to the palaeontology of the Martinez Group. University of California Publications Bulletin of the Department of Geology 4(5):101-123

Belongs to Tritonium according to C. E. Weaver 1905

See also Dickerson 1916

Sister taxa: Charonia (Charonia), Charonia guichemerri, Charonia lampas, Charonia multinodosa, Charonia sauliae, Charonia tritonis, Charonia variegata, Charonia weisbordi, Triton obscurus, Triton abbreviatus, Triton sexcostatus, Triton connectens, Triton heptagonum, Triton oligostirus, Triton crassidens, Triton cribrosus, Triton quoyi, Triton ovoideus, Triton buccinoides, Triton mississpiensis, Triton atavus, Triton obscurus, Tritonium pulchrum, Tritonium eocenicum, Tritonium martinezensis, Tritonium centrosum, Tritonium buwaldi, Tritonium newsomi

Ecology: epifaunal carnivore

Distribution: found only at UCMP 337 (Paleocene of California)

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Specimen images are retrieved through the ePANDDA API.