Geologically oldest evidence of ‘lumpy jaw’ (Macropod Progressive Periodontal Disease) in kangaroos of Australia: implications for conservation management

Figures & data

Figure 1. Map of Queensland showing study location at Chinchilla.

Figure 2. Stratigraphic log of Diprotodon Site at the Chinchilla Rifle Range, Chinchilla, southeast Queensland. Letters in circles (A–G) refer to the named stratigraphic horizons.

Figure 3. Left mandible of Osphranter ?pan (QMF61053) from Diprotodon Site at the Chinchilla Rifle Range showing expression of MPPD (indicated by large arrows). A, Occlusal view; B, lingual view; C, buccal view. Abbreviations (lowercase): a, anterior; b, buccal; d, dorsal. For comparison to non-pathological mandibular specimens of O. pan, see plates 17 and 18 in Bartholomai (1975). A digital 3D photogrammetric model (https://doi.org/10.17602/M2/M515488) and associated image series of the specimen is available on Morphosource (https://doi.org/10.17602/M2/M515485).

Table 1. Measurements of the cheek teeth of Osphranter ?pan (QMF61053), the pathological specimen at Diprotodon Site, Chinchilla Rifle Range, southeast Queensland.

Tooth	Length	Anterior width	Posterior width
LM3	22.1	12.3	11.6
LM4	20.0	12.4	10.8

All measurements are in mm. For a comparison of dental measurements with other individuals of O. pan, see Bartholomai (1975).

Bartholomai, A., 1975. The genus Macropus Shaw (Marsupialia: Macropodidae) in the Upper Cainozoic deposits of Queensland. Memoirs of the Queensland Museum 17, 195–235.

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