Distinction of Arvernoceros ardei and Cervus perrieri (Cervidae, Mammalia) from the late Pliocene site of Perrier (France) based on the postcranial skeleton: taxonomic and phylogenetic conclusions

Abstract

Characteristics of the postcranial skeleton of Arvernoceros ardei and Cervus perrieri from Perrier (France, late Pliocene, 2.78 ± 0.01 Ma BP, MNQ 16b) are described and distinguished. This was made possible by using the skeletal remains of A. ardei from Kaltensundheim (Germany, Thuringia, late Pliocene age) as identification keys. C. perrieri did not occur in Kaltensundheim. Twenty-five skeletal differences of A. ardei and C. perrieri are detected, and are compared to the genera Eucladoceros, Cervus, Praemegaceros and Megaloceros. The results demonstrate a high level of conformity of A. ardei with Eucladoceros in predominantly plesiomorphic features; major differences exist between A. ardei and Cervus, and A. ardei and Megaloceros. C. perrieri shows several similarities with Cervus elaphus, in which both differ from A. ardei and Eucladoceros. An association of C. perrieri to the genus Cervus is indicated by the postcranial skeleton, as has been discussed in the literature based on antler characteristics. By the findings of Kaltensundheim, a precise association of dental and skeletal characteristics to A. ardei is possible now. The allocation of E. giulii from Untermasfeld (Germany, Thuringia, Jaramillo event) to the genus Arvernoceros appears doubtful based on the dental and skeletal features of A. ardei from Kaltensundheim and Perrier. The original classification within the genus Eucladoceros is considered probable.