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Amphiumidae
Taxonomy
Amphiumidae was named by Gray (1825). It is extant.
It was assigned to Urodela by Cope (1875) and Gadow (1898); to Salamandroidea by Kuhn (1946) and Estes and Berberian (1970); to Amphiumoidea by Estes (1981) and Carroll (1988); to Caudata by Frank and Ramus (1996), Rieppel and Grande (1998) and Parmley et al. (2007); and to Urodela by Gao and Shubin (2001) and Skutschas and Gubin (2012).
It was assigned to Urodela by Cope (1875) and Gadow (1898); to Salamandroidea by Kuhn (1946) and Estes and Berberian (1970); to Amphiumoidea by Estes (1981) and Carroll (1988); to Caudata by Frank and Ramus (1996), Rieppel and Grande (1998) and Parmley et al. (2007); and to Urodela by Gao and Shubin (2001) and Skutschas and Gubin (2012).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1825 | Amphiumidae Gray |
| 1875 | Amphiumidae Cope p. 12 |
| 1898 | Amphiumidae Gadow p. 13 |
| 1946 | Amphiumidae Kuhn p. 53 |
| 1970 | Amphiumidae Estes and Berberian p. 4 |
| 1981 | Amphiumidae Estes |
| 1988 | Amphiumidae Carroll |
| 1996 | Amphiumidae Frank and Ramus |
| 1998 | Amphiumidae Rieppel and Grande p. 700 |
| 2001 | Amphiumidae Gao and Shubin p. 576 |
| 2007 | Amphiumidae Parmley et al. p. 76 |
| 2012 | Amphiumidae Skutschas and Gubin |
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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. Amphiumidae Gray 1825
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G. Amphiuma Garden 1821 [amphiuma]
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†Amphiuma jepseni Estes 1969
Amphiuma means Garden 1821 [two-toed amphiuma]
Amphiuma pholeter Neill 1964 [one-toed amphiuma]
Amphiuma tridactylum Cuvier 1827 [three-toed amphiuma]
Invalid names: Amphiuma antica Holman 1977 [nomen dubium]
G. Muraenopsis Fitzinger
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: Carroll 1988, Hendy et al. 2009, Uhen 2004 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Campanian to the top of the Holocene or 83.50000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 70.6 Ma
Minimum age of oldest fossil (stem group age): 70.6 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (New Jersey) | Proamphiuma sp. (14455) | |
| Late/Upper Maastrichtian | USA (North Dakota) | Proamphiuma cretacea (45144) | |
| Late/Upper Maastrichtian | USA (Montana) | Proamphiuma cretacea (13142) | |
| Puercan | USA (Montana) | Proamphiuma cretacea (14666 14798) | |
| Ti4 | Canada (Saskatchewan) | Amphiumidae indet. (14978) | |
| Tiffanian | USA (Wyoming) | Amphiuma jepseni (15049) | |
| Wasatchian | USA (Wyoming) | Paleoamphiuma tetradactylum (15853) | |
| Barstovian | USA (Texas) | Amphiuma antica (18646) | |
| Hemphillian | USA (Florida) | Amphiuma sp. (18601) | |
| Pleistocene | USA (Florida) | Amphiuma sp. (227368) | |
| Late/Upper Pleistocene (late glacial) | USA (Georgia) | Amphiuma sp. (75066) | |
| Late/Upper Pleistocene (glacial) | USA (Florida) | Amphiuma means (154921) | |
| Late/Upper Pleistocene (late glacial) | USA (Florida) | Amphiuma sp. (154722) | |
| Late/Upper Pleistocene | USA (Florida) | Amphiuma means (34269) | |
| Late/Upper Pleistocene (interglacial) | USA (Georgia) | Amphiuma means (20604) | |
| Holocene | USA (Georgia) | Amphiuma means (152113) | |
| Holocene | USA (Florida) | Amphiuma sp. (227371) |