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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Abajudon
Taxonomy
Abajudon was named by Angielczyk et al. (2014). It is not extant.
It was assigned to Dicynodontia by Angielczyk et al. (2014); and to Endothiodontia by Olroyd et al. (2017).
It was assigned to Dicynodontia by Angielczyk et al. (2014); and to Endothiodontia by Olroyd et al. (2017).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Abajudon Angielczyk et al. |
| 2017 | Abajudon Olroyd 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. L. Olroyd et al. 2017 | A small dicynodont (preserved skull
length D 9.6 cm) with autapomorphic maxillary teeth having the following features: triangular cross-section with the apex pointing distally to distolingually; a tapered, procurved tip; mesial face has grooves near its labial and lingual edges that become shallower as they converge at the tip; labial groove bounded labially by a thick, rounded ridge that smoothly merges with the rest of the labial face of the tooth; lingual groove bounded lingually by a sharp ridge lacking denticles; and the mesial face bulges between both grooves near the base of the tooth. Also differentiated by having the following combination of characters: round depression on the anterior-most ventral surface of the premaxilla; no caniniform process, premaxillary teeth present; long, medially set tooth row on the maxilla; elongate palatine pads with paired depressions on the ventral surface; large, ventrally directed transverse flange of the pterygoid; wide intertemporal bar; pineal foramen set far back on the skull roof; dentary symphysis drawn upwards into a spike; and round bosses on the lateral face of the dentary. Distinguished from Endothiodon by a wide intertemporal bar, a large transverse flange of the pterygoid, and the lack of a boss or collar around the pineal foramen. Distinguished from Emydops by the arrangement of the maxillary teeth in a regular row, the lack of an embayment in the palatal rim anterior to the caniniform process, and a spiky dentary symphysis. Distinguished from Niassodon by the rounded boss on the dentary, lack of a caniniform process, lack of distinct ornamentation on the frontal and preparietal, and triangular mandibular fenestra. Distinguished from Compsodon by a wide contribution of the parietals to the skull roof and lack of contact between the maxilla and the squamosal. Distinguished from Pristerodon by having premaxillary teeth, nine to 10 upper and lower teeth on each side, a posteriorly placed pineal foramen, and alarge and ventrally directed transverse flange of the pterygoid. Distinguished from Brachyprosopus by having premaxillary teeth and absence of a pineal boss. Distinguished from Lanthanostegus by the lack of a highly ossified braincase, lack of extensive contact between the parietal and the supraoccipital, lack of a pineal boss, and smaller size. Distinguished from Cryptocynodon by paired depressions on the palatine pads and presence of premaxillary teeth. |
Measurements
No measurements are available
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| Source: infrao = infraorder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Benton 1983, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Wordian to the top of the Capitanian or 266.90000 to 259.51000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Permian | Tanzania (Ruvuma) | A. kaayai (188881) | |
| Guadalupian | Zambia (Southern) | Dicynodontia indet. (171619) | |
| Wordian - Capitanian | Zambia (Southern) | A. kaayai (192593 192594 192595 192596 192597) |