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Kogiopsis
Taxonomy
Kogiopsis was named by Kellogg (1929) [Sepkoski's age data: T Plio-l]. It is not extant. It was considered monophyletic by Uhen et al. (2008).
It was considered a nomen dubium by Fordyce and de Muizon (2001); it was considered a nomen dubium by Uhen and Pyenson (2007).
It was assigned to Kogiinae by Simpson (1945) and McKenna and Bell (1997); to Cetacea by Sepkoski (2002); and to Physeteridae by Sherman (1952), Carroll (1988), Kazár (2002) and Uhen et al. (2008).
It was considered a nomen dubium by Fordyce and de Muizon (2001); it was considered a nomen dubium by Uhen and Pyenson (2007).
It was assigned to Kogiinae by Simpson (1945) and McKenna and Bell (1997); to Cetacea by Sepkoski (2002); and to Physeteridae by Sherman (1952), Carroll (1988), Kazár (2002) and Uhen et al. (2008).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1929 | Kogiopsis Kellogg p. 2 figs. Fig. 1-3 |
| 1945 | Kogiopsis Simpson p. 102 |
| 1952 | Kogiopsis Sherman p. 99 |
| 1988 | Kogiopsis Carroll |
| 1997 | Kogiopsis McKenna and Bell p. 381 |
| 2002 | Kogiopsis Kazár p. 163 |
| 2002 | Kogiopsis Sepkoski |
| 2008 | Kogiopsis Uhen et al. p. 576 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. D. Uhen et al. 2008 | Similar to corresponding portions of mandibles of Kogia, but differs in having broader symphysis, six instead of eith teeth on the symphysial portion of ramus, alveoli not extending over so far on lateral surface of ramus, and in addition is much larger. Rami firmly ankylosed in region of symphysis; dorsal surface of symphysis rather broad and flat; lateral surfaces of rami solope to mid-line of ventral face of symphysis. Large alveoli located on upper outer edge or angel of mandible. Ten teeth in each mandible, of which six are lodged in symphysis. Teeth long (3 to 4 inches in length), somewhat curved, with small crowns, without distinct neck, and rather closely spaced. outer surfaces of cement wrinkled and ornamented with coarse longitudinal grooves. Outer surface of internal cone of dentine encircled by fine ridges (Kellogg, 1929). |