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Papahu
Taxonomy
Papahu was named by Aguirre-Fernández and Fordyce (2014). Its type is Papahu taitapu.
It was assigned to Odontoceti by Aguirre-Fernández and Fordyce (2014) and Berta (2017); and to Waipatiidae by Lambert et al. (2017).
It was assigned to Odontoceti by Aguirre-Fernández and Fordyce (2014) and Berta (2017); and to Waipatiidae by Lambert et al. (2017).
Species
P. taitapu (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Papahu Aguirre-Fernández and Fordyce p. 197 figs. Figs. 2-7, Tables 1-3 |
| 2017 | Papahu Berta p. 160 |
| 2017 | Papahu Lambert et al. p. 936 figs. FIgure 14 |
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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.
G. †Papahu Aguirre-Fernández and Fordyce 2014
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†Papahu taitapu Aguirre-Fernández and Fordyce 2014
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. Aguirre-Fernández and R. E. Fordyce 2014 | Papahu taitapu is a generalized, medium size odontocete, with ‘archaic’ features including open mesorostral canal, nares partially roofed by nasals, transversely reduced intertemporal region, well-developed infratemporal crest, and pterygoid sinus complex that does not invade the orbit and temporal fossa. Papahu taitapu differs from Xenorophidae in the presence of homodonty, reduced intertemporal constriction, and lacrimal not greatly enlarged; from Agorophiidae in the presence of homodonty and a reduced intertemporal constriction; from Physeteridae and Kogiidae by lacking a wide supracranial basin, pronounced cranial asymmetry, enlarged accessory ossicle on the periotic, and enlarged posterior process of tympanic bulla; from Ziphiidae by the absence of hypertrophied pterygoid sinus fossae, enlarged accessory ossicle on the periotic, and enlarged posterior process of tympanic bulla; from Waipatiidae by lacking double-rooted teeth, nodular nasals, and subcircular periotic fossa, and the apex of premaxilla does not extend posterior to nasals; from Prosqualodontidae and Squalodontidae by the smaller size and the absence of double-rooted teeth, it differs further from Prosqualodontidae in the absence of a deep an- torbital notch; from Squalodelphinidae by not having the thick supraorbital process of the frontal and lacking a square-shaped pars cochlearis of the periotic; from Allodelphinidae by lacking elongated nasals, a vertical supraoccipital, and thin, narrow, feathered proximal ends on premaxillae; and from Delphinida by the lack of the parabullary ridge on the periotic and the lack of orbital extensions of the pterygoid sinus. The Dalpiazinidae are too poorly known to be compared in this diagnosis; many of the features used to diagnose dalpiazinids are not preserved in Papahu taitapu. |