XXIII. On the fossil mammals of Australia.—Part IX. family macropodidæ; genera macropus, pachysiagon, leptosiagon, procoptodon, and palorchestes

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Abstract
§ 1. Macropus Titan .—In illustration of certain fossils from the freshwater beds of the Queensland province, showing the hindmost mandibular molars with characters of the general type of those of the Macropus Titan , but with modifications indicative of specific difference, it appears requisite to premise figures and descriptions of the corresponding molars at a similar stage of wear and age, which are plainly referable to Macropus Titan . In the subjects of figs. 13 & 15, Plate xxvii. of a former Part, the last mandibular molar had but recently come into use; the edges of the two main lobes showed the backwardly oblique abrasion of the enamel, but not carried so far as to expose the dentine; the links were entire from their origin at the fore and outer angles of the two lobes; the hind surface of the second lobe showed the whole of the angular fossa on its inner half, and the small faint vertical notch external thereto.

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