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Cymbalophus cuniculus
Taxonomy
Hyracotherium cuniculus was named by Owen (1842). Its type specimen is BMNH 36569, a tooth (left M3), and it is a 3D body fossil. Its type locality is Kyson, which is in a Ypresian terrestrial horizon in the Suffolk Pebble Beds Formation of the United Kingdom. It is the type species of Cymbalophus.
It was recombined as Cymbalophus cuniculus by Hooker (1980) and Froehlich (2002).
It was recombined as Cymbalophus cuniculus by Hooker (1980) and Froehlich (2002).
Synonymy list
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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.
†Cymbalophus cuniculus Owen 1842
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. J. Froehlich 2002 | This taxon has no identified unambiguous autapomorphies but it can be diagnosed by the characters it shares with Systemodon. The synapomorphies include the following characters: upper molar parastyle small (Character 38, 2 to 1), M3 smaller than M2, M3 larger than M2 (Character 67, 2 to 1), P4 entoconid small and variable (Character 75, 2 to 1), and M3 hypoconulid connection forming a triple junction with the prehypoconulid crista (Character 105, 0 to 1). The last of these characters is only found in these two taxa and strongly supports their monophyly. Cymbalophus can be distinguished from Systemodon only on size and geography. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Ji et al. 2002, Carroll 1988, Lillegraven 1979, Hendy et al. 2009, Nowak 1999 | |||||
Age range: Early/Lower Eocene or 55.80000 to 48.60000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | United Kingdom | Hyracotherium cuniculus (87950) | |
| Ypresian | United Kingdom (England) | Hyracotherium cuniculus (184228) Hyracotherium cuniculus, Cymbalophus cuniculus (133368) | |
| Ypresian | Belgium (Hainaut) | Cymbalophus cuniculus (87947) | |
| Early/Lower Eocene | France (Var) | Hyracotherium cuniculus (35538) |