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Cetotherium megalophysum
Taxonomy
Cetotherium megalophysum was named by Cope (1895). Its type specimen is USNM 10593, a partial skull, and it is a 3D body fossil.
It was recombined as Plesiocetus megalophysum by Kellogg (1925); it was recombined as Plesiocetopsis megalophysum by Hay (1930) and Abel (1938); it was considered an invalid subgroup of Cetotherioidea by Steeman (2007); it was considered an invalid subgroup of Cetotheriidae by Goldin and Startsev (2014) and Marx and Fordyce (2015).
It was recombined as Plesiocetus megalophysum by Kellogg (1925); it was recombined as Plesiocetopsis megalophysum by Hay (1930) and Abel (1938); it was considered an invalid subgroup of Cetotherioidea by Steeman (2007); it was considered an invalid subgroup of Cetotheriidae by Goldin and Startsev (2014) and Marx and Fordyce (2015).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Cetotherium megalophysum Cope pp. 146-147 |
| 1898 | Cetotherium megalophysum Trouessart p. 1071 |
| 1902 | Cetotherium megalophysum Hay p. 599 |
| 1904 | Cetotherium megalophysum Case p. 41 |
| 1904 | Cetotherium megalophysum Trouessart p. 780 |
| 1925 | Plesiocetus megalophysum Kellogg p. 51 |
| 1930 | Plesiocetopsis megalophysum Hay p. 572 |
| 1938 | Plesiocetopsis megalophysum Abel p. 7 |
| 2011 | Cetotherium megalophysum Marx p. 83 figs. Figure 2 |
| 2015 | Cetotherium megalophysum Gol'din and Steeman p. 6 |
| 2016 | Cetotherium megalophysum Marx et al. |
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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.
†Cetotherium megalophysum Cope 1895
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Diagnosis
No diagnoses are available