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Genus of turtles
Trionyx is a
genus of
softshell turtles belonging to the family
Trionychidae . In the past many species in the family were classified in this genus, but today
T. triunguis , the African or Nile softshell turtle, is the only
extant softshell still classified as Trionyx . The other species still assigned to this genus are only known from fossils. T. triunguis is a relatively large, aquatic
piscivore .
Species
The list of species follows a 2017 review of the Trionychidae by Georgios L. Georgalis and Walter G. Joyce.
[2]
The following species are considered valid trionychid taxa, but with uncertain phylogenetic relationships. They are only referred to Trionyx provisionally due to its historic status as a
wastebasket taxon .
[2] The species from North America follow a 2015 review by Natasha S. Vitek and Walter G. Joyce
[3] and the species from Europe and Asia follow the 2017 review by Georgalis and Joyce.
[2]
† "Trionyx " admirabilis (Hay, 1905) – Paleocene of New Mexico (United States)
[3]
† "Trionyx " aequa (Hay, 1908) – Eocene of Wyoming (United States)
[3]
† "Trionyx " allani (Gilmore, 1923) – Late Cretaceous of Alberta (Canada)
[3]
† "Trionyx " austerus (Hay, 1908) – Late Cretaceous of New Mexico (United States)
[3]
† "Trionyx " baynshirensis Danilov et al., 2014 – Middle Cretaceous of Dornogovi Aimag (Mongolia)
[2]
† "Trionyx " beecheri (Hay, 1904) – Late Cretaceous of Wyoming (United States)
[3]
† "Trionyx " boulengeri Reinach, 1900 – Oligocene of Rhineland-Palatinate (Germany)
[2]
† "Trionyx " capellinii Negri, 1892 – Eocene of Veneto (Italy)
[2]
† "Trionyx " dissolutus Vitek & Danilov, 2014 – Late Cretaceous of Navoiy Region (Uzbekistan)
[2]
† "Trionyx " ellipticus (Hay, 1908) – Eocene of Utah (United States)
[3]
† "Trionyx " eloisae (Gilmore, 1919) – Paleocene of New Mexico (United States)
[3]
† "Trionyx " foveatus Leidy, 1857 – Late Cretaceous of Montana (United States)
[3]
† "Trionyx " gilbentuensis Danilov et al., 2014 – Late Cretaceous of Ömnögovi Aimag (Mongolia)
[2]
† "Trionyx " gobiensis Danilov et al., 2014 – Late Cretaceous of Ömnögovi Aimag (Mongolia)
[2]
† "Trionyx " gregarius (Gilmore, 1934) – Eocene of Inner Mongolia (China)
[2]
† "Trionyx " henrici Owen, 1849 – Eocene of Hampshire (United Kingdom)
[2]
†
"Trionyx " ikoviensis Danilov et al., 2011 – Eocene of Luhansk (Ukraine)
[2]
† "Trionyx " impressus (Yeh, 1963) – Eocene of Yuangdong Province (China)
[2]
† "Trionyx " latus (Gilmore, 1919) – Late Cretaceous of Alberta (Canada)
[3]
† "Trionyx " leucopotamicus Cope, 1891 – Eocene of Saskatchewan (Canada)
[3]
† "Trionyx " johnsoni Gilmore, 1931 – Eocene of Inner Mongolia (China)
[2]
†
"Trionyx " kansaiensis Vitek & Danilov, 2010 – Late Cretaceous of Khodzhent Province (Tajikistan)
[2]
† "Trionyx " linchuensis (Yeh, 1962) – Eocene of Shandong Province (China)
[2]
† "Trionyx " messelianus Reinach, 1900 – Eocene of Hesse (Germany)
[2]
† "Trionyx " miensis Okazaki and Yoshida, 1977 – Pliocene of Mie Prefecture (Japan)
[2]
† "Trionyx " miocaenus (Matthew, 1924) – Eocene of Wyoming (United States)
[3]
† "Trionyx " minusculus (Chkhikvadze, 1973) – Eocene of East Kazakhstan Region (Kazakhstan)
[2]
† "Trionyx " mira (Hay, 1908) – Eocene of Wyoming (United States)
[3]
† "Trionyx " ninae Chkhikvadze, 1971 – Oligocene of Karagandy Region (Kazakhstan)
[2]
† "Trionyx " onomatoplokos Georgalis & Joyce, 2017 – Late Cretaceous of Kyzylorda Region (Kazakhstan)
[2]
† "Trionyx " reesidei (Gilmore, 1919) – Paleocene of New Mexico (United States)
[3]
† "Trionyx " riabinini Kuznetsov & Chkhikvadze, 1987 – Late Cretaceous of Kyzylorda Region (Kazakhstan)
[2]
† "Trionyx " robustus (Gilmore, 1919) – Late Cretaceous of New Mexico (United States)
[3]
† "Trionyx " shiluutulensis Danilov et al., 2014 – Late Cretaceous of Ömnögovi Aimag (Mongolia)
[2]
† "Trionyx " silvestris Walker & Moody, 1974 – Eocene of Kent (United Kingdom)
[2]
† "Trionyx " singularis (Hay, 1907) – Paleocene of New Mexico (United States)
[3]
† "Trionyx " uintaensis Leidy, 1873 – Eocene of Wyoming (United States)
[3]
† "Trionyx " vegetus (Gilmore, 1919) – Paleocene of New Mexico (United States)
[3]
† "Trionyx " yixiensis Li, Tong et al., 2015 – Early Cretaceous of Heilongjiang Province (China)
[2]
† = extinct
References
External links