Neofiber True, 1884 . Science, 4:34.

COMMENT: Chaline and Mein, 1979, and Kretzoi, 1969, Vert. Hungar. (Budapest), 11: 155-193, placed this genus and Ondatra, in the tribe Ondatrini, as does CAR. However, WVK places them in separate tribes or subfamilies based on differences in the fossil history and the pattern of enamel on the molars; see Koenigswald, 1980, Abh. Senckenb. Naturforsch. Ges., 539. Martin, L. D., 1975, in Smith and Friedland, eds., Studies on the Cenozoic Paleontology and Stratigraphy, p. 109, and Martin, L. D., 1979, Trans. Nebr. Acad. Sci., 7:91-100, came to a similar conclusion based on dental characters, and because the similarity between the two genera decreases in the earlier members of the lineages. Placed by Gromov and Polyakov, 1977:336, as genus incertae sedis.

ISIS NUMBER: 5301410008082000000.