Ryder, John A.

4 publications

Ryder, John A. (detail)
1878On the mechanical genesis of tooth-forms.
Proc. Acad. Nat. Sci. Philadelphia 30(1): 45-80. 11 figs. Apr. 1878.
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Ryder, John A. (detail)
1885On the probable origin, homologies, and development of the flukes of cetaceans and sirenians.
Amer. Naturalist 19: 515-519.
—Proposes that the flukes are homologous with the pes of land animals.
Ryder, John A. (detail)
1887bOn the development of the Cetacea, together with a consideration of the probable homologies of the flukes of cetaceans and sirenians.
Rept. U.S. Fish. Comm. 13: 427-485. Pls. 1-3.
—Sirs., 427, 475.
Ryder, John A. (detail)
1887aOn the homologies and early history of the limbs of vertebrates.
Proc. Acad. Nat. Sci. Philadelphia 39(3): 344-368. 1 tab.
—Sirs., 346.