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Thalassemys hugii
Discussion
With the exception of the lectotype, it is unclear which other specimens once formed the syntype series.
Taxonomy
Thalassemys hugii was named by Rütimeyer (1873). Its type specimen is NMS 8595 to NMS 8609 (lectotype; formerly NMS 1), a partial skeleton (A large carapace plus associated plastron fragments and postcranial remains), and it is a 3D body fossil. Its type locality is Cirin, Ain, BMNH Coll., which is in a Kimmeridgian marine horizon in France.
Synonyms
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Synonymy list
Year | Name and author |
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1873 | Thalassemys hugii Rütimeyer p. 27 |
1873 | Thalassemys gresslyi Rütimeyer p. 39 |
1889 | Thalassemys hugii Lydekker p. 148 |
1965 | Thalassemys hugii Bräm p. 143 |
1965 | Eurysternum ignoratum Bräm p. 166 figs. Plate 8, fig. 6 |
1996 | Solnhofia ignoratum Lapparent de Broin et al. p. 562 |
2000 | Eurysternum ignoratum Joyce p. 699 |
2012 | Thalassemys hugii Karl et al. |
2014 | Thalassemys hugii Anquetin et al. |
2017 | Thalassemys hugii Anquetin 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.
†Thalassemys hugii Rütimeyer 1873
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Invalid names: Eurysternum ignoratum Bräm 1965 [synonym], Thalassemys gresslyi Rütimeyer 1873 [synonym]
Diagnosis
Reference | Diagnosis | |
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J. Anquetin et al. 2017 | Thalassemys hugii can be diagnosed as a representative of Thalassemys by the full list of characters provided for that taxon above. Thalassemys hugii differs from all other Thalassemys by having narrower vertebral scutes. Thalassemys hugii further differs from Thalassemys bruntrutana by having a proportionally wider nuchal without anterolateral thickening on the ventral surface, a proportionally shorter plastron, narrower and more inclined xiphiplastra, and a smaller scapular angle, and differs from Thalassemys marina by having less pronounced lateral plastral fontanelles. |