Pachycynodon sp. 3, 1888

Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ‘ Phosphorites du Quercy’ in southwestern France, Geodiversitas 41 (15), pp. 601-621 : 611

Pachycynodon sp. 3

( Fig. 3A )

DESCRIPTION

Pachycynodon sp. 3 is a piece of left maxilla with M1-M2 (UM VD47). The M1 (size = 6.7 × 8.6 mm)differs from Amphicynodon by its larger buccal length relative to the bucco-lingual diameter and the relatively lingually situated metaconule ( Fig. 3A ). The features are less expressed than in P. boriei. The M2 (size = 4.3 × 7) is oval, smaller but close to the pattern of P. ‘ gryei ’ (Filhol, 1976). The M1 UM VD48 ( Fig. 2F ) is similar to VD47 and likely belongs to the same species (size = 7 × 8.6 mm).

Figures

FIG. 3. — A, Pachycynodon sp. 3, left M1-M2, UM VD47, in occlusal view; B, Pachycynodon cf. filholi, UM VD5, left hemi-mandible, in buccal (B1), lingual (B2), and occlusal (B3) views; C-E, Pachycynodon cf. dubius; C, left hemi-mandible UM VD14, in buccal (C1), lingual (C2), and occlusal (C3) views; D, right hemimandible UM VD4, in lingual (D1) and buccal (D2) views; E, right hemimandible VD6, in buccal (E1), and occlusal (E2) views; F, Cephalogale sp., left mandible UP MGB26, in lingual (F1), and buccal (F2) views; G, Pachycynodon sp. 5, left P4 UP VD51, in occlusal (G1), and mesial (G2) views; H, Pachycynodon cf. filholi, right m2, UP LPL14, in occlusal view. Scale bars: 5 mm.

FIG. 2. — A, Pachycynodon boriei or curvirostris (Filhol, 1876): A1-A3, UP LPL13, right m1, in buccal (A1), lingual (A2), and occlusal (A3) views; A4, A5, d3-d4, in buccal (A4), and lingual (A5) views; B, C, Pachycynodon sp. 1; B, UP MGB9, left d4, in buccal (B1), lingual (B2), and occlusal (B3) views (stereo); C, UM VD16, right d4, in buccal (C1), lingual (C2) view, and occlusal (C3) views; D, Pachycynodon sp. 2, UM VD18, right d4; D1, lingual view, occlusal (D2), and buccal (D3) views; E, Pachycynodon cf. filholi, UM VD7, left hemi-mandible, in buccal (E1), lingual (E2), and occlusal (E3) views; F, Pachycynodon sp. 3, UM VD48 M1, in occlusal view; G, Pachycynodon sp. 4, UM VD50 M1, in occlusal view. Scale bars: 5 mm.