Elements of the comparative anatomy Elements of the comparative anatomy of vertebrates elementsofcompar00wied Year: 1886 96 COMPAKATIVE ANATOMY. Dinosaurians the latter (Fig. 81,*) is more strongly developed, and plainly leads towards the form of pelvis seen in Birds. FIG. 81.—PELVIS OF Igiianodon bernissartensis. (After Dollo.) *, preacetabolar, and Jl, postacctabular process of the ilium ; a, acetabutnm (per- forated) ; P, pars acetabularis (pectineal process of pubis) ; Pl, pubis; Js, ischium.

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