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Lusochelys emilianoi
Discussion
The specific epithet is named in honor of Dr. Emiliano Jimnez Fuentes, for his contribution to knowledge of Iberian fossil turtles.
Taxonomy
Lusochelys emilianoi was named by Pérez-García and Antunes (2024). Its type specimen is TA 0002, a partial skeleton (several remains of a skeleton including the articulated anterior half of the carapace and several dorsal vertebrae, a cervical vertebra, and a caudal one), and it is a 3D body fossil. Its type locality is Caparica, which is in a Tortonian coastal horizon in Portugal. It is the type species of Lusochelys.
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Lusochelys emilianoi Pérez-García and Antunes |
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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.
†Lusochelys emilianoi Pérez-García and Antunes 2024
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Pérez-García and M. T. Antunes 2024 | Pan-cheloniid turtle showing by the following character combination: well-developed ornamental pattern on the carapace outer surface, composed of irregular, raised polygons, generally between 5 and 10 mm in length (more developed than in the extant representatives of this clade); absence of carapacial longitudinal ridges; presence of fontanelles between the costal and the peripheral plates, anteriorly reaching the nuchal; absence of post-nuchal fontanelles; shallow but wide nuchal notch; nuchal plate four times as wide as long, reaching the distal half of the first pair of costals; slightly longer than wide first neural; hexagonal second to third neurals, one and a half times as long as wide; some neural transversely splitting into two elements, the posterior being the smallest; first pair of costals slightly longer laterally than medially; costals relatively wide in relation to their length (i.e., first pair about two and a half times as wide as long, and the second to fourth costals three times as wide as long); width of second and third vertebral scutes equal to half that of the nuchal plate; second vertebral as wide as long, with an obtuse lateral angle of about 140°; presence of four pairs of pleural scutes (i.e., overlap of the margin between the first and second pleurals on the second pair of costal plates, and that between the second and third pleurals on the fourth pair); well-developed nuchal visceral rugosity for the attachment with the eighth cervical vertebra; well-developed lateral expansion of the transverse processes of the fifth cervical vertebra (relative to that in E. imbricata, being more similar to the condition in C. caretta); relatively large posterior condyle of the fifth cervical vertebra (larger than in E. imbricata, but similar to that in C. caretta); absence of a subvertical posterior margin of the ventral keel of the fifth cervical vertebra (more similar to that found in C. caretta than in E. imbricata). |
Measurements
No measurements are available
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| Source: superf = superfamily, subo = suborder, c = class, subp = subphylum | |||||
| References: Kiessling 2004, Hendy et al. 2009, Uetz 2005, Bush and Bambach 2015, Carroll 1988 | |||||