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Craspedochelys passmorei
Taxonomy
Tholemys passmorei was named by Andrews (1921). Its type specimen is NHMUK R5871, a partial skeleton (subcomplete shell with associated postcranial remains, including parts of the girdles, the left humerus, and partial cervical vertebrae), and it is a 3D body fossil. Its type locality is Swindon Recreation Ground, which is in a Kimmeridgian marine claystone in the Kimmeridge Clay Formation of the United Kingdom.
It was recombined as Craspedochelys passmorei by Anquetin et al. (2017).
It was recombined as Craspedochelys passmorei by Anquetin et al. (2017).
Entered
by R. Benson on 2013-01-02
Synonymy list
| Year | Name and author |
|---|---|
| 1921 | Tholemys passmorei Andrews p. 153 figs. 1-3 |
| 2013 | Tholemys passmorei Pérez-García and Murelaga |
| 2017 | Craspedochelys passmorei 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 passmorei Andrews 1921
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Anquetin et al. 2017 | Craspedochelys passmorei differs from all other Craspedochelys by having a hexagonal carapace, with its greatest width between peripherals IV and VII, and a deeper nuchal notch. In addition, Craspedochelys passmorei differs from Craspedochelys jaccardi by having a lower length/width ratio of the costal bones (around 4.3, as opposed to 4.8 or more for costal IV), reduced epiplastra that do not reach the lateral margin of the anterior plastral lobe, and a longer posterior plastral lobe. It differs from Craspedochelys picteti by being smaller in size and by having a less quadrangular anterior carapace, a contact between costal VIII and peripheral XI, a wider than long pygal bone, and wider than long hyoplastra. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum, p = phylum | |||||
| References: Hendy et al. 2009, Bambach et al. 2007, Kiessling 2004, Carroll 1988 | |||||
Age range: Late/Upper Kimmeridgian or 152.21000 to 149.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian | United Kingdom (England) | Tholemys passmorei (type locality: 138007) |