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Kermackodon
Taxonomy
Kermackodon was named by Butler and Hooker (2005). It is the type genus of Kermackodontidae.
It was assigned to Kermackodontidae by Butler and Hooker (2005) and Mao et al. (2022).
It was assigned to Kermackodontidae by Butler and Hooker (2005) and Mao et al. (2022).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 2005 | Kermackodon Butler and Hooker p. 186 figs. Figs. 6A–C, 7A, 8A, 9 |
| 2005 | Kirtlingtonia Butler and Hooker p. 186 figs. Figs. 1F, G, 5A–C |
| 2005 | Millsodon Butler and Hooker p. 186 figs. Figs. 1D, E, 3A, B, G, H, 4A |
| 2005 | Kirtlingtonia Butler and Hooker p. 192 figs. Figs. 1F, G, 5A–C |
| 2005 | Kermackodon Butler and Hooker p. 195 figs. Figs. 6A–C, 7A, 8A, 9 |
| 2018 | Millsodon Huttenlocker et al. |
| 2022 | Kermackodon Mao et al. p. 4 |
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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. †Kermackodon Butler and Hooker 2005
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†Kermackodon oxfordensis Kermack et al. 1998
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Invalid names: Kermackodon multicuspis Butler and Hooker 2005 [synonym], Kirtlingtonia catenata Butler and Hooker 2005 [synonym], Millsodon superstes Butler and Hooker 2005 [synonym]
Invalid names: Kirtlingtonia Butler and Hooker 2005 [synonym], Millsodon Butler and Hooker 2005 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. M. Butler and J. J. Hooker 2005 (Millsodon) | Lower molariforms (provisionally identified as m1 and m3) differ from Thomasia and Staffia in the larger mesiolingual cusp (a1), of which the height is greater than half the length of the tooth. Mesiobuccal cusp absent on m1, rudimentary on m3.Resembles Staffia and differs from Thomasia in that cusp a1 is blunt and curved distally.Differs from Staffia in the absence of deep synclines between the cusps. Referred upper molar has an enlarged distobuccal cusp, an inclined basin on its mesial side, and a third (lingual) cusp row. | |
| P. M. Butler and J. J. Hooker 2005 (Kirtlingtonia) | Upper molar with a central basin, flanked buccally by a crest on which stand an anterior and a median pointed cusp, with minor elevations more distally. The basin is shallow, without fluting. Lingually to the basin is a central row consisting of a moderately high mesial cusp followed by a chain of about 6 cusps of diminishing size; the chain curves buccally at its end, where it crosses the basin towards the median buccal cusp. There is an enlarged cusp at the distal end of the tooth (?= cusp B1 of Eleutherodon). On the mesiolingual side of this is a diminishing series of 3 or more smaller cusps. Lingual to the central row are numerous minor cusps, irregularly arranged. Differs from Eleutherodon in the pointed cusps, the small number of buccal cusps, the absence of fluting in the groove, failure of the central row to unite with cusp B1, and the absence of the lingual groove and cusp BB. Upper premolar semi−molariform. | |
| P. M. Butler and J. J. Hooker 2005 | As for family [Kermackodontidae], by monotypy | |
| F. Mao et al. 2022 | Differs from Butlerodon gen. nov. in having more cusps on upper and lower molars, a pronounced row Ax in the upper molar, lower molar spindle-shaped with broad basin, mesially extended cusp a1, and reduced cusp b1. |