| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Proamphiuma
Taxonomy
Proamphiuma was named by Estes (1969). It is not extant.
It was considered a nomen dubium by Rieppel and Grande (1998).
It was assigned to Amphiumidae by Estes and Berberian (1970), Estes (1981), Carroll (1988), Bryant (1989) and Gardner (2003).
It was considered a nomen dubium by Rieppel and Grande (1998).
It was assigned to Amphiumidae by Estes and Berberian (1970), Estes (1981), Carroll (1988), Bryant (1989) and Gardner (2003).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Proamphiuma Estes |
| 1970 | Proamphiuma Estes and Berberian p. 4 |
| 1981 | Proamphiuma Estes |
| 1988 | Proamphiuma Carroll |
| 1989 | Proamphiuma Bryant p. 32 |
| 2003 | Proamphiuma Gardner |
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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
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Uhen 2004, Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Late/Upper Campanian to the top of the Puercan or 83.50000 to 63.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (New Jersey) | P. sp. (14455) | |
| Late/Upper Maastrichtian | USA (Montana) | P. cretacea (13142) | |
| Late/Upper Maastrichtian | USA (North Dakota) | P. cretacea (45144) | |
| Puercan | USA (Montana) | P. cretacea (14666 14798) |