. Fic. 21. Front view of rinht hind foot oi Diplodocus carncgii (No. 94). a, astragalus. panded distally, and supi)orts a small, rounded, hemispherical terminal phalanx which in life was without horny covering and was probably imbedded within the integument of the skin. No phalanges were found in position with tlie lifth meta- tarsal, but as in Brontomaras there was most likely a small, rudimentary first phalanx without nail. From the above description and accompanjang figures it will be seen that the pes of Diplodocus is semi-plantigrade and that the weight of the body was borne by the inner
. Fic. 21. Front view of rinht hind foot oi Diplodocus carncgii (No. 94). a, astragalus. panded distally, and supi)orts a small, rounded, hemispherical terminal phalanx which in life was without horny covering and was probably imbedded within the integument of the skin. No phalanges were found in position with tlie lifth meta- tarsal, but as in Brontomaras there was most likely a small, rudimentary first phalanx without nail. From the above description and accompanjang figures it will be seen that the pes of Diplodocus is semi-plantigrade and that the weight of the body was borne by the inner side of the foot, so that digits one and two became correspondingly larger, while three, four and five through have become more and more atrophied. Although in Diplodocm this had not yet resulted in the total elimination of any of the digits, yet the phalanges of the fifth have already become functionally obsolete.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdiplodo, bookyear1901
