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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Amyda
Taxonomy
Amyda was named by Geoffroy Saint-Hilaire (1809). It is extant.
It was corrected as Emyda by Lydekker (1889); it was reranked as Trionyx (Amyda) by Bergounioux (1954).
It was assigned to Emydinae by Lydekker (1889); to Trionyx by Bergounioux (1954); to Trionychidae by Geoffroy Saint-Hilaire (1809), Cope (1875), Cope (1884), Hay (1908), Gilmore (1915), Hay (1930), Gilmore (1931), Gilmore (1934), Yeh (1963), Frank and Ramus (1996), Sukhanov (2000) and Brinkman et al. (2008); to Trionychinae by van Dijk et al. (2014); and to Chitrini by Cadena (2016).
It was corrected as Emyda by Lydekker (1889); it was reranked as Trionyx (Amyda) by Bergounioux (1954).
It was assigned to Emydinae by Lydekker (1889); to Trionyx by Bergounioux (1954); to Trionychidae by Geoffroy Saint-Hilaire (1809), Cope (1875), Cope (1884), Hay (1908), Gilmore (1915), Hay (1930), Gilmore (1931), Gilmore (1934), Yeh (1963), Frank and Ramus (1996), Sukhanov (2000) and Brinkman et al. (2008); to Trionychinae by van Dijk et al. (2014); and to Chitrini by Cadena (2016).
Synonymy list
Year | Name and author |
---|---|
1809 | Amyda Geoffroy Saint-Hilaire |
1875 | Amyda Cope p. 51 |
1884 | Emyda Cope |
1889 | Emyda Lydekker p. 22 |
1908 | Amyda Hay p. 510 |
1915 | Amyda Gilmore p. 156 |
1930 | Amyda Hay p. 110 |
1931 | Amyda Gilmore p. 254 |
1934 | Amyda Gilmore |
1954 | Trionyx (Amyda) Bergounioux p. 55 |
1963 | Amyda Yeh |
1996 | Amyda Frank and Ramus |
2000 | Amyda Sukhanov pp. 345-346 |
2008 | Amyda Brinkman et al. p. 72 |
2014 | Amyda van Dijk et al. |
2016 | Amyda Cadena |
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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.
Diagnosis
No diagnoses are available
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 Early/Lower 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 (12 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Campanian - Middle Campanian | USA (North Carolina) | A. sp. (57918) | |
Bridgerian | USA (Wyoming) | A. exquisita (16228) | |
Early/Lower Uintan | USA (California) | Trionyx sp. (16665) | |
Duchesnean | USA (California) | Trionyx sp. (16804) | |
Pleistocene | China (Jiangxi) | A. sp. (35923) | |
Middle Pleistocene | Thailand (Nakhon Ratchasima) | A. sp. (143885) | |
Middle Pleistocene | Indonesia (Jawa Timur) | Trionyx trinilensis (93521) | |
Middle Pleistocene - Late/Upper Pleistocene | China (Guangdong) | A. sinensis (13293) | |
Holocene | Thailand (Suphan Buri) | A. ornata (201928) | |
Holocene | Thailand (Lopburi) | A. ornata (201933 201936) | |
Holocene | Thailand (Singburi) | A. ornata (201942) |