Note 113 — Chapter XX · CLASS MAMMALIA.
Reading edition
See R. Owen, "Monograph of the Fossil Mammalia of the Mesozoic Formation," Pal. Soc. Mon. 1871.
H.F. Osborn, "Structure and Affinities of Mesozoic Mammals," J. of Philad. Acad. 1888, vol. IX.
O.C. Marsh, "Jurassic Mammals," Amer. J. Sci. 1878 et seq.