1937 Caenotherium gracile Pomel; Dehm, 1937: 352.
Holotype: Skull BSP1952 II 1149. Gaimersheim fissure filling (Germany) (MP28).
Diagnosis: Species of Plesiomeryx that appears similar to P. cadurcensis, but is larger. The fronto- nasal suture is short. The lingual cingulum of P/3 is missing. The lingual and labial cones of P/4 reach the same level (Berger, 1959).
Referred material: Mas de Got: four maxillary fragments, one with right P2/-M3/ (MGT 3209), one with right P3/-M2/ (MGT 3208), one with left P1/-M1/ (MGT 3212), and one with left P4/-M3/ (MGT 3213); 14 mandibular fragments, two with left P/2-M/3 (MGT 131, MGT 3187), three with left P/3-M/3 (MGT 103, MGT 115, MGT 134), two with left P/2-M/1 (MGT 105, MGT 138), two with right P/3-M/2 (MGT 107, MGT 3183), one with left P/1-P/3 (MGT 124), two with right P/3-P/ 4 (MGT 191, MGT 3177), one with right P/3-M/1 (MGT 3193), one with left P/2-P/3 (MGT 195). La Plante 2: three mandibular fragments, two with right P/3-M/1 (PL 2 1171, PL 2 1221), one with left P/2-P/3 (PL 2 1216). Pech Crabit: four left maxillary fragments P1/- P2/ (PCT 382, PCT 391, PCT 431, PCT 1000); 11 mandibular fragments, two with left P/2-P/3 (PCT 348),