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Trionychini
Taxonomy
Trionychini was named by Gray (1825). It is extant. It was considered monophyletic by Meylan (1987), Danilov and Vitek (2013).
It was assigned to Trionychinae by Danilov et al. (2014); and to Trionychinae by Meylan (1987), Hutchison (1996), Weisrock and Janzen (2000), Karl (2007), Karl and Lindow (2012), Danilov and Vitek (2013), Karl (2018), Karl and Tichy (2019).
It was assigned to Trionychinae by Danilov et al. (2014); and to Trionychinae by Meylan (1987), Hutchison (1996), Weisrock and Janzen (2000), Karl (2007), Karl and Lindow (2012), Danilov and Vitek (2013), Karl (2018), Karl and Tichy (2019).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1825 | Trionychini Gray |
| 1987 | Trionychini Meylan |
| 1996 | Trionychini Hutchison p. 339 |
| 2000 | Trionychini Weisrock and Janzen p. 153 |
| 2007 | Trionychini Karl p. 34 |
| 2012 | Trionychini Karl and Lindow p. 181 |
| 2013 | Trionychini Danilov and Vitek |
| 2014 | Trionychini Danilov et al. |
| 2018 | Trionychini Karl |
| 2019 | Trionychini Karl and Tichy p. 14 |
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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.
Tr. Trionychini Gray 1825
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Subtr. Apalonina Meylan 1987 [softshell turtle]
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G. †Gobiapalone Danilov et al. 2014
G. †Rafetoides Karl 1998
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†Rafetoides messelianus Reinach 1900
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Invalid names: Rafetoides austriacus Peters 1858 [synonym], Trionyx messelianus kochi Hummel 1927 [synonym], Trionyx messelianus lepsiusi Hummel 1927 [synonym]
Invalid names: Rafetoidina Karl 1998 [empty], Trionychina Gray 1825 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. A. Meylan 1987 | Members of the subfamily Trionychinae with eight or fewer neurals
(fused first and second count as two), parietal makes up nearly one-quarter of processus trochlearis oticum, and dorsal margin of apertura narium extemum is strongly emarginate (except in swinhoei and euphraticus). |
Measurements
No measurements are available
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| Source: f = family, subp = subphylum | |||||
| References: Carroll 1988, Ernst and Barbour 1989 | |||||
Age range
Maximum range based only on fossils: base of the Middle Turonian to the top of the Aquitanian or 93.90000 to 20.45000 Ma
Minimum age of oldest fossil (stem group age): 89.8 Ma
Minimum age of oldest fossil (stem group age): 89.8 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian - Santonian | Mongolia (Omnogov) | Trionyx sp. (130804) | |
| Middle Turonian - Late/Upper Turonian | Uzbekistan (Navoi) | Trionychini indet. (75943) | |
| Danian | Denmark | Rafetoides henrici (211015) | |
| Selandian | Denmark | Rafetoides henrici (160393 211012 211014) | |
| Bridgerian | USA (Wyoming) | Trionyx scutumantiquum (130809) | |
| Lutetian | Germany (Bavaria) | Rafetoides austriacus (187573) Trionyx sp. (187571) | |
| Lutetian | Germany (Sachsen-Anhalt) | Palaeoamyda messeliana (179236) | |
| Lutetian | Austria | Rafetoides messelianus (236310) | |
| MP 11 | Germany (Hessen) | Trionyx sp. (22701) | |
| MP 13 | Germany (Eifel) | Rafetoides messelianus (24201) | |
| Uintan | USA (Utah) | Amyda scutumantiquum (16589 185688 185696) | |
| Uintan | USA (Wyoming) | Oliveremys uintaensis (177037) | |
| Early/Lower Oligocene | Kazakhstan | Ulutrionyx ninae (179690) | |
| Early/Lower Oligocene | Germany (Hesse) | Rafetoides austriacus (177495) | |
| Aquitanian | USA (Texas) | Trionychini indet. (18663) |