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Proganochelydia (disused)
Taxonomy
Proganochelydia is a suborder.
It was assigned to Chelonia by Carroll (1988); and to Testudines by Gaffney (1975) and Gaffney et al. (2006).
It was assigned to Chelonia by Carroll (1988); and to Testudines by Gaffney (1975) and Gaffney et al. (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Proganochelydia Gaffney p. 424 |
| 1988 | Proganochelydia Carroll |
| 2006 | Proganochelydia Gaffney et al. p. 26 |
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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.
Subor. †Proganochelydia
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. S. Gaffney 1975 | Turtles with open interpterygoid vacuity and cultriform process; floor of cavum acustico-jugulare open; middle ear (essentially the cavum acustico-jugulare) without a lateral wall formed by the quadrate; kidney-shaped cavum tympani absent; palatal and rudimentary marginal teeth present; apertura narium externa divided by dorsal processes of premaxillae; crista supraoccipitalis not developed as in other turtles; antrum postoticum absent; well-developed median tubercle on (?) basioccipital; lacrimal apparently present. |