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Wakaleo oldfieldi
Taxonomy
Wakaleo oldfieldi was named by Clemens and Plane (1974). Its type specimen is SAM P 17925, a mandible (left dentary fragment containing incison, P3, M1 and alveoli from M2, M3), and it is a 3D body fossil. Its type locality is Leaf locality, Lake Ngapakaldi, which is in an Oligocene/Miocene fluvial-lacustrine horizon in the Wipajiri Formation of Australia. It is the type species of Wakaleo.
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Wakaleo oldfieldi Clemens and Plane |
| 2014 | Wakaleo oldfieldi Gillespie et al. p. 514 figs. 2-4 |
| 2019 | Wakaleo oldfieldi Gillespie et al. |
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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.
†Wakaleo oldfieldi Clemens and Plane 1974
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. K. Gillespie et al. 2014 | Wakaleo oldfieldi differs from W. vanderleueri and W. alcootaensis in having a smaller P3. It also differs from W. vanderleueri in having; a smaller P3:M1 ratio (P3:M1 < 1.6; P3:M1 < 1.4); a shorter and relatively broader M3, which is subrectangular in outline with a rugose talonid basin; a more angular posterior edge of M1 in the region of the metaconule; and a relatively shorter apical cusp of M1 (compared with molar length and the height of the talonid basin). Further, W. oldfieldi lacks an anterior cingulum on M3, and the buccal margins of M1‒2 are less developed than they are in W. vanderleueri such that the paracone is only slightly taller than the metacone and moderately taller than the protocone. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Hopson 1973, Clemens 1979, Lillegraven 1979, Carroll 1988 | |||||
Age range: base of the Late/Upper Oligocene to the top of the Serravallian or 28.40000 to 11.62000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Oligocene - Early/Lower Miocene | Australia (South Australia) | Wakaleo oldfieldi (type locality: 13313) | |
| Langhian - Serravallian | Australia (Queensland) | Wakaleo oldfieldi (137790 154250 175732) | |
| Middle Miocene | Australia (Queensland) | Wakaleo oldfieldi (175729 175731) |