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Waipatia
Taxonomy
Waipatia was named by Fordyce (1994). Its type is Waipatia maerewhenua. It was considered monophyletic by Geisler et al. (2011).
It was assigned to Waipatiidae by Fordyce (1994), Fordyce and de Muizon (2001), Geisler and Sanders (2003), Fordyce and Roberts (2009), Fitzgerald (2010), Geisler et al. (2011), Tanaka and Fordyce (2014), Fornasiero and Del Vavero (2014), Boessenecker and Fordyce (2015), Tanaka and Fordyce (2015), Marx et al. (2016), Lambert et al. (2017) and Berta (2017).
It was assigned to Waipatiidae by Fordyce (1994), Fordyce and de Muizon (2001), Geisler and Sanders (2003), Fordyce and Roberts (2009), Fitzgerald (2010), Geisler et al. (2011), Tanaka and Fordyce (2014), Fornasiero and Del Vavero (2014), Boessenecker and Fordyce (2015), Tanaka and Fordyce (2015), Marx et al. (2016), Lambert et al. (2017) and Berta (2017).
Species
W. hectori, W. maerewhenua (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Waipatia Fordyce p. 147 |
| 2001 | Waipatia Fordyce and de Muizon p. 178 |
| 2003 | Waipatia Geisler and Sanders p. 28 |
| 2009 | Waipatia Fordyce and Roberts p. 553 |
| 2010 | Waipatia Fitzgerald p. 370 figs. Table 1 |
| 2011 | Waipatia Geisler et al. |
| 2014 | Waipatia Fornasiero and Del Vavero p. 67 |
| 2014 | Waipatia Tanaka and Fordyce p. 26 |
| 2015 | Waipatia Boessenecker and Fordyce figs. Table 1 |
| 2015 | Waipatia Tanaka and Fordyce |
| 2016 | Waipatia Marx et al. p. 120 |
| 2017 | Waipatia Berta p. 160 |
| 2017 | Waipatia 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. †Waipatia Fordyce 1994
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†Waipatia hectori Benham 1935
†Waipatia maerewhenua Fordyce 1994
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Y. Tanaka and R. E. Fordyce 2015 | Waipatia is characterised by an attenuated rostrum with polydont heterodont teeth including denticulate cheek-teeth; an opened symphysis; a depressed premaxillary sac fossa, which is elevated posteriorly; a posterolateral plate and posteromedial splint of the premaxilla; a slightly asymmetrical vertex with anteroposteriorly oval nasals; a moderately rounded ascending process of the maxilla; an anteroposteriorly long frontal on the vertex; post- glenoid process squared in lateral view; and a relatively robust zygomatic process in ventral view. The periotic has a distinct anterior keel; an unfused accessory ossicle; a strongly projecting lateral tuberosity; a narrow internal acoustic meatus; and a short posterior process that is an elongate comma-shape. The posterior process of the bulla has prominent sutures for the periotic, posterior meatal ridge, and post-tympanic process. (Some of the listed features are not preserved in W. hectori.) Waipatia differs from M. ambiguus in size of teeth (smaller), more slender double roots, much smaller denticles, and absence of nodular ornamentation on both the lingual and buccal sides. Waipatia is distinguished from Otekaikea by having an anteroposteriorly longer frontal on the vertex, clearer and strongly projected pedicle of the occipital condyles, and presence of double-rooted posterior cheek-teeth with two or three posterior denticles. |