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Matapanui
Taxonomy
Matapanui was named by Boessenecker and Fordyce (2017).
It was assigned to Eomysticetidae by Boessenecker and Fordyce (2017), Berta (2017), Fordyce and Marx (2018), Robinson et al. (2024).
It was assigned to Eomysticetidae by Boessenecker and Fordyce (2017), Berta (2017), Fordyce and Marx (2018), Robinson et al. (2024).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Matapanui Berta p. 167 |
| 2017 | Matapa Boessenecker and Fordyce |
| 2017 | Matapanui Boessenecker and Fordyce |
| 2018 | Matapanui Fordyce and Marx p. 5 figs. Fig. 4 |
| 2024 | Matapanui Robinson et al. p. 577 |
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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. †Matapanui Boessenecker and Fordyce 2017
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†Matapanui waihao Boessenecker and Fordyce 2017
Invalid names: Matapa Boessenecker and Fordyce 2017 [replaced]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. W. Boessenecker and R. E. Fordyce 2017 (Matapa) | Matapa waihao is a small mysticete (5-6 m estimated body length, based on exoccipital width of OU 22742 in comparison with Tokarahia kauaeroa). Archaic features differing from crown Mysticeti include: an ante- roposteriorly thickened paroccipital process, narrower exposure of the squamosal lateral to the exoccipital in posterior view, distinct glenoid fossa, secondary squamosal fossa, unfused tympanoperiotics, well-differentiated medial and lateral lobes of the tympanic bulla, horizontal cleft of sigmoid fissure, horizontal crest positioned on posterior surface of medial lobe, tympanic cavity divided by transverse ridge, prominent elliptical foramen and separated inner and outer posterior pedicles, mandible with large mandibular foramen, and anteroposteriorly thick cervical vertebrae. Matapa waihao differs from archaeocetes and all toothed mysticetes in possessing an orbitotemporal crest positioned entirely dorsally, and kinetic premaxilla maxilla contact; from all other Eomysticetidae in possessing a premaxilla extending further posterior than the nasal and anterolaterally convex subtemporal crest; from Eomysticetus and Micromysticetus rothauseni in possessing an anteroposteriorly broader supraorbital process of the frontal and a triangular anterior process; from Eomysticetus and Yamatocetus in possessing a lanceolate mandibular terminus; from Tohoraata, Tokarahia and Waharoa in possessing a squamosal prominence, a concave anterodorsal margin of the anterior process, a double-faced posterior bullar facet of the periotic with longitudinal creases, a proportionally small stapedial muscle fossa, an elongate caudal tympanic process, and lacking supraorbital foramina. Matapa waihao further differs from Tokarahia and Waharoa in possessing an anteroposteriorly longer anterior process of the periotic. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: base of the Whaingaroan to the top of the Duntroonian or 34.60000 to 25.20000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Whaingaroan | New Zealand (South Canterbury) | Matapa waihao (179790) | |
| Whaingaroan | New Zealand (South Island) | Matapa sp. (179791) | |
| Duntroonian | New Zealand (South Island) | M. sp. (204235) |