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Aurorachelys gaffneyi
Taxonomy
Aurorachelys gaffneyi was named by Vandermark et al. (2009). Its type specimen is UR 06.085, a partial shell (impressions of the dorsal and ventral carapacial surfaces, and impressions of posterior plastron with a single hyoplastron and both hypoplastra and xiphiplastr), and it is an impression. Its type locality is Expedition Fiord, Axel Heiberg, which is in a Cenomanian estuary/bay siltstone/shale in the Kanguk Formation of Canada.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Aurorachelys gaffneyi Vandermark et al. |
| 2023 | Aurorachelys gaffneyi Gentry 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.
†Aurorachelys gaffneyi Vandermark et al. 2009
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Vandermark et al. 2009 | A macrobaenid turtle similar to Late Cretaceous and Paleocene genera, but differing from Early Cretaceous genera in havinga carapace >30 cm long and in having well-formed hexagonal neurals, and differing from all Late Cretaceous and Paleocene genera in having a more nearly circular shell. Also differing from Judithemys in having a mid-plastra fenestra, and differing from Anatolemys in that the posterior lobe of the plastron is longer and narrower. | |
| A. D. Gentry et al. 2023 | Aurorachelys gaffneyi can be differentiated from J. sukhanovi and A. ebersolei by the presence of a central plastral fenestra, and from species of Osteopygis in having a nearly circular shell, a shallow nuchal emargination, and a pygal equal or greater in width than the adjacent peripherals. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Kiessling 2004, Carroll 1988 | |||||
Age range: Late/Upper Cenomanian or 100.50000 to 93.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian | Canada (Nunavut) | Aurorachelys gaffneyi (type locality: 45559) |