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Chelonoidis monensis
Taxonomy
Testudo monensis was named by Williams (1952). Its type specimen is AMNH 1969, a limb element (first dorsal vertebra), and it is a 3D body fossil. Its type locality is Lirio Cave, which is in a Holocene cave horizon in Puerto Rico.
It was recombined as Geochelone monensis by Auffenberg (1967); it was recombined as Chelonoidis monensis by Franz and Franz (2009), Rhodin et al. (2015), Vlachos (2018).
It was recombined as Geochelone monensis by Auffenberg (1967); it was recombined as Chelonoidis monensis by Franz and Franz (2009), Rhodin et al. (2015), Vlachos (2018).
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Testudo monensis Williams p. 547 |
| 1967 | Geochelone monensis Auffenberg |
| 2009 | Chelonoidis monensis Franz and Franz |
| 2015 | Chelonoidis monensis Rhodin et al. |
| 2018 | Chelonoidis monensis Vlachos |
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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.
†Chelonoidis monensis Williams 1952
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. E. Williams 1952 | Differs from other species of Testudo in having the centrum of Le first dorsal vertebra elongate and very narrow at its middle (only one-quarter to one-sixth as wide at its waist as it is long from the posterior margin of the anterior condyle to the caudal line of suture with the second dorsal centrum) and in having a shallow palate with the vomer less arched dorsally. Size moderate. Margin of carapace not scalloped or dentate. Sulci feeble. Shell thin. xiphiplastral notch absent. | |
| E. Vlachos 2018 | “Chelonoidis” monensis can be diagnosed as a member of Testudinidae based on the presence of a skull with extensive temporal emargination, the presence of a median maxillary ridge, and the presence of a well-developed ridge throughout the length of the vomer, as a member of Chelonoidis by the absence of a median ridge developed anteroposteriorly on the ventral side of the premaxillae, and as a member of the Galápagos tortoise complex by the presence of an elongated first thoracic centrum. “Chelonoidis” monensis is distinguished from the Galápagos tortoises by a narrower and more elongated first thoracic centrum. |
Measurements
No measurements are available
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| Source: f = family, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Ernst and Barbour 1989, Carroll 1988 | |||||