A reevaluation of the taxonomic status of the rodent Masillamys Tobien, 1954 from Messel (Germany, late early to early middle Eocene, 48–47 m.y.) - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Fossil Imprint Année : 2019

A reevaluation of the taxonomic status of the rodent Masillamys Tobien, 1954 from Messel (Germany, late early to early middle Eocene, 48–47 m.y.)

Résumé

This paper clarifies the identification of the three species referred by Tobien (1954) to the genus Masillamys from Messel, and more specifically provides a revision of their diagnosis and differential dental features, using an updated terminology. Based on specimens better preserved than the holotype (M. beegeri), it appears that this genus had an infraorbital area more hystricomorphous than sciuromorphous. As the genus shares dental features – like a long oblique postprotocristid or the occurrence of a metalophid I on the lower molars, the relatively well-developed hypocone on the upper molars, as well as hystricomorphy –, notably with Hartenbergeromys and Pantrogna, Masillamys is here included among the basal Theridomorpha.
Fichier principal
Vignette du fichier
Vianey-Liaud-et-al_2019_Fossil-Imprint_Masillamys.pdf (22.12 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02433446 , version 1 (14-01-2020)

Identifiants

Citer

Monique Vianey-Liaud, Laurent Marivaux, Thomas Lehamnn. A reevaluation of the taxonomic status of the rodent Masillamys Tobien, 1954 from Messel (Germany, late early to early middle Eocene, 48–47 m.y.). Fossil Imprint, 2019, 75 (3-4), pp.454-483. ⟨10.2478/if-2019-0028⟩. ⟨hal-02433446⟩
122 Consultations
102 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More