Procamelus, LEIDY, 1858

Maguire, Kaitlin Clare & Schmitz, Joshua X. Samuels and Mark D., 2022, The fauna and chronostratigraphy of the middle Miocene Mascall type area, John Day Basin, Oregon, USA, PaleoBios 35, pp. 1-51 : 34

PROCAMELUS LEIDY, 1858

cf. Procamelus sp.

FIG. 19

Referred specimens —Left dentary with anterior portion of p2 and p3, alveoli of p4, complete m2 and partial m3, right m1, CIT 4003.

Occurrence — UCMP V 67153.

Description—The m2 of CIT 4003 has an anteroexternal stylid and measures 24 mm in anteroposterior length and 13.5 mm in transverse width. Cheek teeth are more hypsodont than in protolabines.

Remarks —The size, presence of the anteroexternal stylid and presence of the second premolar place this specimen within Procamelus ( Honey et al. 1998) , but because the posterior portions of the p2 and p3 are missing as well as the p4, the specimen is only tentatively placed in this genus. This represents the earliest occurrence of Procamelus in Oregon and one of the earliest records of Camelini ( Honey et al. 1998). Procamelus cf. grandis Gregory, 1939 is also known from the Clarendonian age Black Butte Local fauna ( Shotwell and Russell 1963).

Figures

Figure 19. cf. Procamelus sp. left dentary with partial p2 and p3, alveoli of p4 and m1, complete m2 and partial m3, CIT 4003. A. Occlusal view. B. Lateral view. C. Right m1 in occlusal view. Scale bars=1cm.