Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Albicetus was named by Boersma and Pyenson (2015).
It was assigned to Physeteroidea by Boersma and Pyenson (2015); and to Panphyseteroidea by Berta (2017).
It was assigned to Physeteroidea by Boersma and Pyenson (2015); and to Panphyseteroidea by Berta (2017).
Species
Synonymy list
Year | Name and author |
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2015 | Albicetus Boersma and Pyenson p. 7 |
2017 | Albicetus Berta p. 160 |
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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 | |
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A. T. Boersma and N. D. Pyenson 2015 | Albicetus is a large odontocete (about 6 m in total length) that belongs in Physeteroidea based on the following features: large, single-rooted upper and lower teeth, with a ratio of condylobasal length to greatest tooth diameter greater than 0.03; anterior elongation of the premaxillae onto the rostrum; sinistral asymmetry of the posterior processes of the premax- illae; and a posterior section of the rostrum that is wide and relatively flat. Albicetus differs from all other known physeteroid genera in the following combination of character states: retention of enameled lower tooth apices with longitudinal striations; large lower and upper teeth with a ratio of condylobasal length to greatest tooth diameter of approximately 0.05; a mesorostral groove completely roofed over at the level of the antorbital notches; and the pre- maxillae angled downward into the midline, creating a trough down the middle of the rostrum. |
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
Reference: Uhen 2004 |
Age range: base of the Langhian to the top of the Late/Upper Miocene or 15.97000 to 5.33300 Ma
Collections (5 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Langhian | USA (California) | Ontocetus oxymycterus (45483) | |
Langhian | Japan (Iwate) | Ontocetus oxymycterus (76005) | |
Middle Miocene | Japan (Iwate) | Ontocetus oxymycterus (46041) | |
Serravallian | Japan (Hokkaido) | Ontocetus oxymycterus (75999) | |
Late/Upper Miocene | Japan (Hokkaido) | Ontocetus oxymycterus (76000) |