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Craspedochelys jaccardi
Taxonomy
Emys jaccardi was named by Pictet (1860). Its type specimen is Geolog. Inst. der Universitat Neuchatel and is a 3D body fossil. Its type locality is 15 km north of Neuchâtel, route de La Chauds-de-Fonds, which is in a Tithonian marine horizon in the Virgulien superieur Formation of Switzerland.
It was recombined as Plesiochelys jaccardi by Rütimeyer (1873) and Bräm (1965); it was synonymized subjectively with Plesiochelys etalloni by Gaffney (1975); it was recombined as Craspedochelys jaccardi by Antunes et al. (1988), Lapparent de Broin et al. (1996), Anquetin et al. (2014) and Anquetin et al. (2017).
It was recombined as Plesiochelys jaccardi by Rütimeyer (1873) and Bräm (1965); it was synonymized subjectively with Plesiochelys etalloni by Gaffney (1975); it was recombined as Craspedochelys jaccardi by Antunes et al. (1988), Lapparent de Broin et al. (1996), Anquetin et al. (2014) and Anquetin et al. (2017).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Emys jaccardi Pictet p. 15 |
| 1873 | Plesiochelys jaccardi Rütimeyer p. 68 |
| 1898 | Plesiochelys choffati Sauvage p. 24 |
| 1965 | Plesiochelys jaccardi Bräm p. 69 |
| 1988 | Craspedochelys jaccardi Antunes et al. p. 145 |
| 1996 | Craspedochelys jaccardi Lapparent de Broin et al. p. 562 |
| 2014 | Craspedochelys jaccardi Anquetin et al. |
| 2017 | Craspedochelys jaccardi 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.
†Craspedochelys jaccardi Pictet 1860
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Invalid names: Plesiochelys choffati Sauvage 1898 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Anquetin et al. 2017 | Craspedochelys jaccardi differs from all other Craspedochelys by having a more rounded carapace with its greatest width at the level of peripheral VII, a higher length/width ratio of the costal bones (4.8 or more, as opposed to around 4.3 for costal IV). In addition, Craspedochelys jaccardi differs from Craspedochelys picteti by being smaller in size (carapace length 420 mm) and by having an evenly rounded anterior carapacial rim, a contact between costal VIII and peripheral XI present, a wider than long pygal bone, and wider than long hyoplastra and differs from Craspedochelys passmorei by having a shallower nuchal notch, epiplastra that reach the lateral margin of the anterior plastral lobe, and a shorter posterior plastral lobe. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Tithonian to the top of the Early/Lower Tithonian or 152.10000 to 145.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian | Portugal (Centro) | Craspedochelys jaccardi (138023) | |
| Late/Upper Kimmeridgian | Switzerland (Solothurn) | Plesiochelys jaccardi (90875) | |
| Late/Upper Kimmeridgian | France (Lot) | Craspedochelys jaccardi (138016) | |
| Tithonian | France (Lot) | Craspedochelys jaccardi (138015) | |
| Tithonian | Portugal (Lisbon) | Plesiochelys choffati (189389) | |
| Early/Lower Tithonian | Switzerland (Canton de Neuchâtel) | Emys jaccardi (type locality: 138021) |