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Ictidosauria
Taxonomy
Ictidosauria was named by Broom (1929). It is not extant.
It was reranked as the unranked clade Ictidosauria by Martinelli and Rougier (2007).
It was assigned to Theromorpha by Kuhn (1946); to Therapsida by Huene (1954); and to Probainognathia by Martinelli and Rougier (2007).
It was reranked as the unranked clade Ictidosauria by Martinelli and Rougier (2007).
It was assigned to Theromorpha by Kuhn (1946); to Therapsida by Huene (1954); and to Probainognathia by Martinelli and Rougier (2007).
Subtaxa
Synonymy list
Year | Name and author |
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1929 | Ictidosauria Broom |
1946 | Ictidosauria Kuhn p. 57 |
1954 | Ictidosauria Huene p. 35 |
2007 | Ictidosauria Martinelli and Rougier |
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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.
Unr. †Ictidosauria Broom 1929
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G. †Trithelodon Broom 1930
Invalid names: Ictidosauridae [empty]
Diagnosis
Reference | Diagnosis | |
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A. G. Martinelli and G. W. Rougier 2007 | The clade including the most recent common ancestor of Riograndia guaibaensis and Pachygenelus monus, and all its descendants.
Diagnosis—Derived non-mammaliaform cynodonts with i1 and I2 larger than the remaining incisors; posterior border of the incisive foramen formed by the premaxilla; palatine longer than the maxilla in bony secondary palate. |
Measurements
No measurements are available
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Source: c = class, subp = subphylum, uc = unranked clade | |||||
References: Hendy et al. 2009, Carroll 1988 |