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Polyodontidae (paddlefish)
Taxonomy
Polyodontidae was named by Bonaparte (1838). It is extant. Its type is Polyodon.
It was assigned to Chondrostei by Woodward (1895) and Hay (1902); to Selachostomi by Jordan (1963); to Acipenseriformes by Estes and Berberian (1970), Bryant (1989), Grande et al. (2002) and Betancur et al. (2013); and to Acipenseroidei by Grande and Bemis (1996), Grande and Hilton (2006) and Nelson et al. (2016).
It was assigned to Chondrostei by Woodward (1895) and Hay (1902); to Selachostomi by Jordan (1963); to Acipenseriformes by Estes and Berberian (1970), Bryant (1989), Grande et al. (2002) and Betancur et al. (2013); and to Acipenseroidei by Grande and Bemis (1996), Grande and Hilton (2006) and Nelson et al. (2016).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1838 | Polyodontidae Bonaparte |
| 1895 | Polyodontidae Woodward p. 43 |
| 1902 | Polyodontidae Hay p. 371 |
| 1963 | Polyodontidae Jordan p. 613 |
| 1970 | Polyodontidae Estes and Berberian p. 3 |
| 1989 | Polyodontidae Bryant p. 21 |
| 1996 | Polyodontidae Grande and Bemis p. 107 fig. 11 |
| 2002 | Polyodontidae Grande et al. |
| 2006 | Polyodontidae Grande and Hilton p. 1 |
| 2013 | Polyodontidae Betancur et al. |
| 2016 | Polyodontidae Nelson et al. p. 118 |
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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. Polyodontidae Bonaparte 1838 [paddlefish]
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Subfm. †Protopsephurinae Grande and Bemis 1996
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Unr. Polyodonti Jaekel 1911
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Subfm. Polyodontinae
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Tr. Polyodontini
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G. Polyodon Lacépède 1797
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Polyodon spathula Walbaum 1792 [American paddlefish]
†Polyodon tuberculata Grande and Bemis 1991
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Barremian to the top of the Torrejonian or 130.00000 to 60.90000 Ma
Minimum age of oldest fossil (stem group age): 125.45 Ma
Minimum age of oldest fossil (stem group age): 125.45 Ma
Collections (36 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Barremian | China (Nei Mongol) | Protopsephurus sp. (103654) | |
| Late/Upper Barremian - Early/Lower Aptian | China (Liaoning) | Protopsephurus liui (101022 134420) | |
| Early/Lower Cenomanian | Uzbekistan (Navoi) | Polyodontidae indet., Hesperopsephurus kyatensis (58208) | |
| Middle Turonian - Late/Upper Turonian | Uzbekistan (Navoi) | Psephuroides kazakhorum (58168) | |
| Judithian | USA (Wyoming) | Polyodontidae indet. (14458) | |
| Late/Upper Campanian | Canada (Alberta) | Polyodontidae indet. (22640 22696 22697 22698 34302 34303 34305 34307 34309 34310 34312 34319 34320 34321 45260 47807 47811 98674) | |
| Late/Upper Campanian | USA (New Mexico) | Paleopsephurus wilsoni (36541) | |
| Middle Campanian | Canada (Alberta) | Polyodontidae indet. (47794 47809) | |
| Middle Campanian - Late/Upper Campanian | Canada (Alberta) | Polyodontidae indet. (167986) | |
| Maastrichtian | USA (Montana) | Paleopsephurus wilsoni (142526) | |
| Early/Lower Maastrichtian | Canada (Alberta) | Polyodontidae indet. (135741) | |
| Late/Upper Maastrichtian | Canada (Saskatchewan) | Polyodontidae indet. (123815 179248) | |
| Late/Upper Maastrichtian | USA (Montana) | Paleopsephurus wilsoni (13142 67129) | |
| Late/Upper Maastrichtian | USA (Wyoming) | Paleopsephurus wilsoni (14585) | |
| Torrejonian | USA (Montana) | Paleopsephurus sp. (14874) |