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Chuannanchelys dashanpuensis
Taxonomy
Chengyuchelys dashanpuensis was named by Fang (1987). Its type specimen is Dashanpu excavation number I-T19 (ZDM 3011), a shell, and it is a 3D body fossil. Its type locality is Dashanpu Dinosaur Quarry [lower], which is in a Bajocian/Oxfordian lacustrine sandstone/mudstone in the Shaximiao Formation of China.
It was recombined as Sichuanchelys dashanpuensis by Brinkman et al. (2008); it was recombined as Chuannanchelys dashanpuensis by Tong et al. (2012) and Obraztsova et al. (2022).
It was recombined as Sichuanchelys dashanpuensis by Brinkman et al. (2008); it was recombined as Chuannanchelys dashanpuensis by Tong et al. (2012) and Obraztsova et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Chengyuchelys dashanpuensis Fang |
| 1990 | Chengyuchelys dashanpuensis Yeh |
| 2008 | Sichuanchelys dashanpuensis Brinkman et al. p. 37 |
| 2008 | Chengyuchelys dashanpuensis Danilov and Parham |
| 2012 | Chuannanchelys dashanpuensis Tong et al. pp. 683-684 fig. 6 |
| 2022 | Chuannanchelys dashanpuensis Obraztsova et al. |
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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.
†Chuannanchelys dashanpuensis Fang 1987
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. -K. Yeh 1990 | The description for the type suggests that several characters relate to C. baenoides while others approach C. zigongensis. Those characters that differentiate this species from the other two include a very rounded entoplastron and an extremely medially compressed mesoplastron. | |
| H. Tong et al. 2012 | A genus of the Bashuchelyidae, carapace length about 200 mm, with the following combination of characters: carapace elongated oval and low (1) with shallow cervical notch (2); all vertebrals broad, second to fourth vertebrals almost twice as wide as long (3); plastron with wide anterior lobe, and short and wide posterior lobe (4); one pair of reduced mesoplastra meeting on the midline and included entirely in the abdominal scute (5); epiplastron squarish (6) with long midline contact (7); entoplastron diamond-shaped and slightly longer than wide (8); intergulars excluded from entoplastron (9). Differs from Bashuchelys by characters 3–9. |