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Ocadia
Taxonomy
Ocadia was named by Gray (1870). It is extant.
It was assigned to Testudinidae by Lydekker (1889); to Batagurinae by Bickham (1975), Ernst and Barbour (1989); to Emydidae by Gilmore (1931), Carroll (1988), Frank and Ramus (1996); and to Geoemydidae by Takahashi et al. (2013).
It was assigned to Testudinidae by Lydekker (1889); to Batagurinae by Bickham (1975), Ernst and Barbour (1989); to Emydidae by Gilmore (1931), Carroll (1988), Frank and Ramus (1996); and to Geoemydidae by Takahashi et al. (2013).
Synonymy list
| Year | Name and author |
|---|---|
| 1870 | Ocadia Gray p. 35 |
| 1889 | Ocadia Lydekker p. 108 |
| 1931 | Ocadia Gilmore p. 227 |
| 1975 | Ocadia Bickham p. 203 |
| 1988 | Ocadia Carroll |
| 1989 | Ocadia Ernst and Barbour |
| 1996 | Ocadia Frank and Ramus |
| 2013 | Ocadia Takahashi et al. p. 529 |
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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. Ocadia Gray 1870
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†Ocadia nicoleti Pictet and Humbert 1856
†Ocadia nipponica Hirayama et al. 2007
†Ocadia perplexa Gilmore 1931
†Ocadia tanegashimensis Takahashi et al. 2013
†Ocadia turgaica Kuznetsov and Chkhikvadze 1977
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Takahashi et al. 2013 | Modified on the basis of Smith (1931), Bourret (1941), Ernst and Barbour (1989),
Hirayama et al. (2007), and this study: medium to large–sized hingeless geoemydids with following combination of character states: hexagonal neural plates short–sided in front; posterior margin of the carapace unserrated; second and third vertebral scutes frequently showing nearly rectangular in shape, as long as wide; the entoplastron intersected by the humero–pectoral sulcus; the plastral buttresses moderately developed, extending to half way of the costal plates; median length of the gular shorter than the interhumeral sulcus and the gular often isolated from the entoplastron; enlarged upper and lower triturating surface decorated by the lingual ridges; the upper triturating surface with a denticulate median ridge; and the foramen palatinum posterius small. |