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Ngawupodius
Taxonomy
Ngawupodius was named by Boles and Ivison (1999). Its type is Ngawupodius minya.
It was assigned to Megapodidae by Boles and Ivison (1999); and to Megapodiidae by Worthy and Nguyen (2020).
It was assigned to Megapodidae by Boles and Ivison (1999); and to Megapodiidae by Worthy and Nguyen (2020).
Species
N. minya (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Ngawupodius Boles and Ivison p. 201 |
| 2020 | Ngawupodius Worthy and Nguyen p. 79 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. E. Boles and T. J. Ivison 1999 | The proximal end is medially flared less than in Megapodius or Progura but is more so than in Alectura. The shape and size of the cotyla medialis are about the same as the cotyla lateralis in proximal view; the dorsal rim is not produced as far dorsally, and the medial rim is thin, unlike the conditions in Leipoa or Alectura. The sulcus hypotarsi is proportionally small in proximal view compared with all the modern taxa. The robustness of the lateral side of the hypotarsus in proximal view is blocky, unlike that in Megapodius. The plantar extension of the crista medialis hypotarsi is greater than in Alectura, Talegalla, Aepypodius, or Macrocephalon but is less than in Megapodius, Eulipoa, or Leipoa. The relative plantar extension of the crista lateralis hypotarsi differs from that in Alectura, Talegalla, Aepypodius, or Progura in being about one-half that of the crista medialis. The distally projecting process on the distal end of the hypotarsus is smaller than that in Megapodius. The dorsoventral compression of the shaft is greater than in Talegalla or Aepypodius. The sides of the shaft are relatively parallel and do not widen toward the distal end, unlike Alectura, Leipoa, Aepypodius, Talegalla, Macrocephalon, or Progura. The relative development of the tuberositas M. tibialis cranialis is shorter in the fossil than in the modern forms. The fossa metatarsi I is not as distinct as in Megapodius, Leipoa, or Progura and has little medial extension. The trochleae are gracile and are not swollen as in the other genera, particularly Megapodius. The trochlea metatarsi II is at the same level as the trochlea metatarsi IV, rather than slightly above, when viewed either distally (unlike Megapodius, Leipoa, or Talegalla) or dorsally (unlike Megapodius, Leipoa, Aepypodius, or Progura). The trochlea metatarsi II is neither inflated nor globular as it is in Megapodius or Eulipoa, and it does not diverge strongly medially, unlike Alectura, Leipoa, Aepypodius, Tale- galla, Macrocephalon, or Progura. The trochlea metatarsi IV does not project laterally, unlike Megapodius or Eulipoa. The articular groove of the trochlea metatarsi IV is moderately well developed, more so than in Alectura, Leipoa, Aepypodius, Talegalla, or Progura, but is less distinct than in Megapodius. |
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Livezey 1997, Marsh 1875 | |||||
Age range: Late/Upper Oligocene or 27.30000 to 23.04000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Oligocene | Australia (South Australia) | N. minya (227321) |