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Waipatia hectori
Taxonomy
Microcetus hectori was named by Benham (1935). Its type specimen is NMNZ Ma 653.
It was considered an invalid subgroup of Microcetus by Fordyce (1991); it was considered an invalid subgroup of Squalodontidae by Fordyce (1991); it was considered an invalid subgroup of Squalodelphinidae by Fordyce and Roberts (2009); it was considered a nomen nudum by Rothausen (1961); it was considered a nomen dubium by Fordyce and de Muizon (2001); it was recombined as Waipatia hectori by Tanaka and Fordyce (2015).
It was considered an invalid subgroup of Microcetus by Fordyce (1991); it was considered an invalid subgroup of Squalodontidae by Fordyce (1991); it was considered an invalid subgroup of Squalodelphinidae by Fordyce and Roberts (2009); it was considered a nomen nudum by Rothausen (1961); it was considered a nomen dubium by Fordyce and de Muizon (2001); it was recombined as Waipatia hectori by Tanaka and Fordyce (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Microcetus hectori Benham p. 243 figs. Fig. 1-5 |
| 1973 | Microcetus hectori Keyes p. 389 |
| 1980 | Microcetus hectori Fordyce p. iii figs. Table 2 |
| 1994 | Microcetus hectori Fordyce p. 172 |
| 2015 | Waipatia hectori Tanaka and Fordyce figs. Figs. 2-4, table 1 |
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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.
†Waipatia hectori Benham 1935
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Y. Tanaka and R. E. Fordyce 2015 | Waipatia hectori is a heterodont odontocete with a skull of medium size (reconstructed bizygomatic width 281 mm, cranial length 189+ mm), and prominent condyles. Differs from W. maerewhenua in: much smaller and more inflated cheek-teeth with less prominent ornament on the buccal and lingual surfaces; cheek-teeth with taller denticles separated by deeper notches; more robust zygomatic process of the squamosal; tympanosquamosal recess that projects forward beyond the level of the subtemporal crest; larger and deeper anterior portion of the periotic fossa; developed crest between the anterior and posterior portions of the periotic fossae; larger foramen spinosum; and long and slender postorbital process. The atlas has a deeper fossa for the dens of the axis, a much larger lower transverse process and narrower and higher neural canal. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: Duntroonian or 27.30000 to 25.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Duntroonian | New Zealand (North Otago) | Microcetus hectori (45658) |