. The structure and classification of birds . Fig. 62 Pelvis of Aptebyx. From Beneath. (After Mivart.) ?7, ilium;,iJ, pubis; z, iscliium ; Zp, prepubio process. There is, however, a closer correspondence betweenthe tail of Archceopteryx and that of the carinate bird. I Fio. 63.—Lumbar and Sacral Vertebra of an Immature Ostrich(after Mivart).8, 9,10, sacral vertebrae; p, parapophyses ; d, diapophyses. than might be assumed from the last-mentioned differ-ences. The first four caudal vertebrae of Archesopteryx havestrong transverse processes, which are weaker, but present,on the fifth, which thus
. The structure and classification of birds . Fig. 62 Pelvis of Aptebyx. From Beneath. (After Mivart.) ?7, ilium;,iJ, pubis; z, iscliium ; Zp, prepubio process. There is, however, a closer correspondence betweenthe tail of Archceopteryx and that of the carinate bird. I Fio. 63.—Lumbar and Sacral Vertebra of an Immature Ostrich(after Mivart).8, 9,10, sacral vertebrae; p, parapophyses ; d, diapophyses. than might be assumed from the last-mentioned differ-ences. The first four caudal vertebrae of Archesopteryx havestrong transverse processes, which are weaker, but present,on the fifth, which thus affords a transition to the remainingsixteen, upon which there are no such processes. In the W. Marshall, Untersuchungen iiber den Vogelschwanz, Ned. i. 1873, p. i94. 114 STRUCTURE AND CLASSIFICATION OF BIRDS same way the free caudals of carinate birds have transverseprocesses, which are at most faintly represented upon the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1898
