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Trionyx beecheri
Taxonomy
Aspideretes beecheri was named by Hay (1904). Its type specimen is YPM VP 000295, a partial skeleton, and it is a 3D body fossil. Its type locality is Converse County (?now Niobrara County), Eubaena cephalica holotype locality, which is in a Maastrichtian terrestrial horizon in the Lance Formation of Wyoming.
It was recombined as Hummelichelys beecheri by Chkhikvadze (2000); it was recombined as Aspideretoides beecheri by Danilov and Vitek (2013), Holroyd et al. (2014); it was recombined as Trionyx beecheri by Vitek and Joyce (2015).
It was recombined as Hummelichelys beecheri by Chkhikvadze (2000); it was recombined as Aspideretoides beecheri by Danilov and Vitek (2013), Holroyd et al. (2014); it was recombined as Trionyx beecheri by Vitek and Joyce (2015).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1904 | Aspideretes beecheri Hay p. 274 |
| 1908 | Aspideretes beecheri Hay p. 492 figs. Plate 90, fig. 2; plate 92, figs. l, 2; plate 96, figs. I, 2; text-fig. 647 |
| 1930 | Aspideretes beecheri Hay p. 108 |
| 1964 | Aspideretes beecheri Estes p. 98 |
| 2000 | Hummelichelys beecheri Chkhikvadze |
| 2013 | Aspideretoides beecheri Danilov and Vitek |
| 2014 | Aspideretoides beecheri Holroyd et al. |
| 2015 | Trionyx beecheri Vitek and Joyce |
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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.
†Trionyx beecheri Hay 1904
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Diagnosis
No diagnoses are available