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Derorhynchidae
Taxonomy
Derorhynchidae was named by Paula Couto (1962). It is not extant. Its type is Derorhynchus.
It was assigned to Didelphoidea by Case et al. (2004); to Didelphimorphia by Goin et al. (1999) and Gelfo et al. (2007); and to Ameridelphia by Oliveira and Goin (2011).
It was assigned to Didelphoidea by Case et al. (2004); to Didelphimorphia by Goin et al. (1999) and Gelfo et al. (2007); and to Ameridelphia by Oliveira and Goin (2011).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Derorhynchidae Paula Couto |
| 1999 | Derorhynchidae Goin et al. |
| 2004 | Derorhynchidae Case et al. p. 228 |
| 2007 | Derorhynchidae Gelfo et al. |
| 2011 | Derorhynchidae Oliveira and Goin |
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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.
Fm. †Derorhynchidae Paula Couto 1962
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G. †Coona Simpson 1938
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†Coona gaudryi Simpson 1964
†Coona gutierrezi Del Corro 1977
†Coona pattersoni Simpson 1948
G. †Derorhynchus Couto 1952
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†Derorhynchus minutus Goin et al. 1999
†Derorhynchus singularis Paula Couto 1952
G. †Xenostylos Goin 2007
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†Xenostylos peninsularis Goin et al. 1999
Invalid names: Xenostylus Goin et al. 1999 [replaced]
Diagnosis
| Reference | Diagnosis |
|---|---|
| F. J. Goin et al. 1999 | The upper molars have a large stylar cusp B which is as tall as or taller than the paracone. Stylar cusp D ( |