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Oklatheridium
Taxonomy
Oklatheridium was named by Davis et al. (2008). Its type is Oklatheridium szalayi.
It was assigned to Deltatheroida by Williamson et al. (2012) and Bi et al. (2015); and to Deltatheridiidae by Davis et al. (2008), Averianov et al. (2010), Davis and Cifelli (2011) and Cifelli and Davis (2015).
It was assigned to Deltatheroida by Williamson et al. (2012) and Bi et al. (2015); and to Deltatheridiidae by Davis et al. (2008), Averianov et al. (2010), Davis and Cifelli (2011) and Cifelli and Davis (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Oklatheridium Davis et al. p. 8 |
| 2010 | Oklatheridium Averianov et al. p. 303 |
| 2011 | Oklatheridium Davis and Cifelli p. 444 |
| 2012 | Oklatheridium Williamson et al. |
| 2015 | Oklatheridium Bi et al. |
| 2015 | Oklatheridium Cifelli and Davis |
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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. †Oklatheridium Davis et al. 2008
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†Oklatheridium minax Davis and Cifelli 2011
†Oklatheridium szalayi Davis et al. 2008
†Oklatheridium wiblei Cifelli and Davis 2015
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. M. Davis and R. L. Cifelli 2011 | Moderate−sized deltatheroidan differing from all other deltatheroidans in relatively larger talonid; differs from all other deltatheroidans except Atokatheridium in narrower stylar shelf; differs from other deltatheroidans except Sulestes in less height differential between paracone and metacone, metacone broader than paracone, prominent conules, mesiodistally broad protocone, and presence of entoconid; differs from Atokatheridium in larger size, larger stylocone, and relatively larger metaconid; differs from Sulestes in wider protoconal region; differs from Deltatheroides in stronger reduction of metacone and metastylar lobe on M4. |