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Akoranemys madagasika
Discussion
The specific name refers to the Malagasy name of the country from which it comes, Madagasikara.
Taxonomy
Akoranemys madagasika was named by Pérez-Garcia (2020). Its type specimen is MNHN.F MDC4, a partial shell (an articulate and undeformed partial shell, which lacks the anterior and posterior areas, as well as the neural series), and it is a 3D body fossil. Its type locality is Betioky, which is in a Cenomanian coastal horizon in Madagascar. It is the type species of Akoranemys.
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Akoranemys madagasika Pérez-Garcia |
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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.
†Akoranemys madagasika Pérez-Garcia 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Pérez-Garcia 2020 | Member of Bothremydina defined by the following exclusive characters: smooth outer surface of the shell; long and narrow costal plates, the width of the second being slightly more than twice its length; subhorizontal distal half of the bridge peripheral plates, their free margins being slightly dorsally projected; broad and deep shell sulci, especially those of the carapace; high and convex plastral bridge. In addition, it shows the following unique character combination within the Bothremydina clade: medium size, shell width about 40 cm; maximum width at the level of the seventh peripherals; sutured contact between the second and third hexagonal neural plates, preventing the axial contact between the second costals; inguinal buttress not reaching half of the fifth costals width; posterior margin of the second vertebral scute on the middle area of the third pair of costals; fifth to seventh marginal scutes very close to the medial border of the peripherals; longer pectorals than abdominal scutes in the medial plane; pectorals overlapping the anterior region of the mesoplastra. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Uetz 2005, Carroll 1988, Hendy et al. 2009 | |||||
Age range: Cenomanian or 100.50000 to 93.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | Madagascar (Atsimo-Andrefana) | Akoranemys madagasika (type locality: 214154) |