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 oligostirus, Triton buccinoides, Triton quoyi, Triton cribrosus, Triton obscurus, Triton ovoideus, Triton connectens, Triton abbreviatus, Triton sexcostatus, Triton mississpiensis, Triton heptagonum, Triton obscurus, Triton crassidens, Triton atavus, Tritonium buwaldi, Tritonium newsomi, Tritonium eocenicum, Tritonium pulchrum, Tritonium martinezensis, Tritonium centrosum

Ecology: epifaunal carnivore

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

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Specimen images are retrieved through the ePANDDA API.