| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Whakakai was named by Tsai and Fordyce (2016). Its type is Whakakai waipata.
It was assigned to Chaeomysticeti by Tsai and Fordyce (2016); and to Eomysticetidae by Berta (2017).
It was assigned to Chaeomysticeti by Tsai and Fordyce (2016); and to Eomysticetidae by Berta (2017).
Species
W. waipata (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Whakakai Tsai and Fordyce figs. Figure 8 |
| 2017 | Whakakai Berta p. 167 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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 | |
|---|---|---|
| C. H. Tsai and R. E. Fordyce 2016 | The tympanic bulla and periotic of †Whakakai waipata OU 21927 differ from the contemporaneous Oligocene toothed mysticetes (†Aetiocetidae and †Mammalodontidae), baleen-bearing mysticetes (†Eomysticetidae and †Horopeta umarere) in the combination of: relatively massive size of tympanic bulla and periotic; well developed (dorsally elevated) superior process of the periotic; wide and posteriorly extended flattened caudal tympanic process; and dorsoventrally deep posterior process of the periotic (more than half the dorsoventral height of the body of the periotic). †Whakakai waipata OU 21927 differs from all the crown baleen-bearing mysticetes (Cetotheriidae/Neobalaenidae, Cetotheriidae sensu lato, Balaenopteridae, Balaenidae, Eschrichtiidae) in showing the following plesiomorphic features: unfused posterior processes of the periotic and tympanic bulla; the presence of a fovea epitubaria, which lacks the usually fused accessory ossicle on the ventral margin of the anterior process; well developed superior process; presence of the sigmoidal cavity in the bulla; presence of an elliptical foramen; and marked sigmoid cleft (sensu horizontal cleft in Tsai & Fordyce 2015b).
†Whakakai waipata OU 21927 differs from described Mysticeti in this autapomorphic combination of features: relatively massive size of the periotic; wide and posteriorly extended flattened caudal tympanic process; dorsoventrally deep posterior process of the periotic (more than half the dorsoventral height of the body of the periotic); well devel- oped posteroexternal sulcus with posteroexternal foramen; and an anteroexternal foramen at the base of anteroexternal sulcus. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|||||
|
|
||||
| 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 (South Island) | W. waipata (173284) |