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Morphology of Cystidea. J.L.S. 1894. 

 Case, E. C. Revision of the Pelycosauria of North America. 1907. 



A Great Permian Delta. P.S.M. December, 1908. 



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 Clarke, J. M. Part-collaborator, Crustacea. Z.T.P. 1900. 

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Condylarthra, Amblypoda, Creodonta. A.N. 1884. 



Vertebrata of the Tertiary Formations of the West. U.S.G.S. 

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 Crick, G. C. Belemnites. P.M.S. 1896, 1907. 



Dall, W. H. Collaborator, Pelecypoda. Z.T.P. 1900. 

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