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Geikia
Taxonomy
Geikia was named by Newton (1893). It is not extant. Its type is Geikia elginensis.
It was assigned to Dicynodontia by Newton (1893); to Dicynodontidae by Carroll (1988); to Aulacocephalodontinae by Maisch and Gebauer (2005); and to Geikiinae by Kammerer and Angielczyk (2009).
It was assigned to Dicynodontia by Newton (1893); to Dicynodontidae by Carroll (1988); to Aulacocephalodontinae by Maisch and Gebauer (2005); and to Geikiinae by Kammerer and Angielczyk (2009).
Species
G. elginensis (type species), G. locusticeps (syn. Pelanomodon tuberosus)
Synonymy list
| Year | Name and author |
|---|---|
| 1893 | Geikia Newton p. 466 |
| 1988 | Geikia Carroll |
| 2005 | Geikia Maisch and Gebauer |
| 2009 | Geikia Kammerer and Angielczyk |
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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. †Geikia Newton 1893
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†Geikia elginensis Newton 1893
†Geikia locusticeps von Huene 1942
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Invalid names: Pelanomodon tuberosus von Huene 1942 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. W. Maisch and E. V. I. Gebauer 2005 | Autapomorphies include snout of typically squared-off shape. Anterior surface of premaxillaries flat, without a longitudinal ridge, meeting lateral surfaces of the snout in pronounced corners. Occipital exposure of squamosal small, only forming a narrow frame around the occipital elements. Further potential autapomorphies are: fenestra mandibularis long (more than one-third of the length of the entire mandible), low and narrow; sec- ondary palate highly vaulted; nasal boss very strongly developed; fenestra medio-palatinalis and fossa inter- pterygoidea elongate. |