. The Deseado formation of Patagonia . ium Deseado 1043 lacking simple innerfold 3-lobed slightlycleft pm. simple 2043 Arehaeophylus Deseado ? I 4 3 ratherlarge deep innerfold, slightouter one Interatherium Santa Cruz 31433143 vestigal slight inner and outer folds 2-lobed slightlycleft Protypotherium Santa Cruz 3143 large deep inner and outer folds 2-lobed slightlycleft closed series 3143 Argyrohyrax Deseado 3143 large bifurcatedinner fold Eutrachytherus Deseado 3143 lacking bifurcatedinner fold 2-lobed 2143 Isoproedrium Deseado ? ? 43 Archaeohyrax Deseado 3143 large deep innerfold, slightoute


. The Deseado formation of Patagonia . ium Deseado 1043 lacking simple innerfold 3-lobed slightlycleft pm. simple 2043 Arehaeophylus Deseado ? I 4 3 ratherlarge deep innerfold, slightouter one Interatherium Santa Cruz 31433143 vestigal slight inner and outer folds 2-lobed slightlycleft Protypotherium Santa Cruz 3143 large deep inner and outer folds 2-lobed slightlycleft closed series 3143 Argyrohyrax Deseado 3143 large bifurcatedinner fold Eutrachytherus Deseado 3143 lacking bifurcatedinner fold 2-lobed 2143 Isoproedrium Deseado ? ? 43 Archaeohyrax Deseado 3143 large deep innerfold, slightouter fold 3-lobfd 3143 Plagiarthrus Deseado 2-lobed ? ? 43 cially in the genera where the enamel is lacking on all butthe front face, but this is entirely a parallelism and thereis no evident phylogenetic relationship. As to affinitieswith the Hyracoidea, Sinclair* has carefully balancedthem and finds so little in common between the two groups ♦Princeton tCxpeditions Reports, Vol. VI, p. 7, 1909. 56 THE DESEADO FORMATION OF PATAGONIA a. ^^ occxx:)


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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectpaleontology