Plesiosminthus meridionalis Comte, 2000

Freudenthal, Matthijs & Martín-Suárez, Elvira, 2017, A revision of European Plesiosminthus (Rodentia, Dipodidae), and new material from the upper Oligocene of Teruel (Spain), Palaeontologia Electronica 9 (1), pp. 1-25 : 12-13

Plesiosminthus meridionalis Comte, 2000

Type locality. Venelles inf., MP30, France.

Holotype. m1 dext., VEL. 420, coll. University Montpellier II.

Material and measurements. Appendix 1.

Diagnosis. Translated from Comte (2000). Differs from Plesiosminthus schaubi by the shorter mesolophid, not connected to the mesostylid in the lower molars.

According to the description by Comte the mesolophid is separated from the mesostylid in 40% of the m1 (n = 20) and 77% of the m2 (n = 26). Plesiosminthus meridionalis , originally described as a subspecies of P. schaubi , and here treated as a species, is characterized by the very high MV values of both m2 and M2 (see Figure 2 , Tables 3 , 5 ). In this respect it is the most advanced species, very different from P. schaubi , and a close relationship is not probable.

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Figures

FIGURE 2. Distribution of morphology values of protoconid hind arm in m2 (filled circles) and protolophule in M2 (open circles). Enclosing circles and connecting lines indicate possible relationships.