Authors Year Title
Clarke 1884 Über deutsche oberdevonische Crustaceen.
Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 1884 (1): 178-185, pl.4, Stuttgart.
Clarke 1885 On the higher Devonian faunas of Ontario County, New York.
Bulletin, U.S. Geological Survey, 16: 1-80, pl.1-3; Washington.
Clarke 1892 The discovery of Clymenia in the Fauna of the Intumescens-zone (Naples beds) of Western New York, and its Geological Significance.
American Journal of Science, 143: 57-63, pl.1; New Haven.
Clarke 1899a The Naples  fauna (fauna with Manticoceras intumescens) in Western New York.
New York State Museum Annual Report, 50: 31-161, fig.1-106, pl.1-9; Albany.
Clarke 1899b Notes on the early stages of certain goniatites.
New York State Museum Annual Report, 50: 165-169, fig.1-6; Albany.
Clarke & Swartz 1913 Cephalopoda [of the Upper Devonian of Maryland].
Maryland Geological Survey, Middle and Upper Devonian: 690-699, pl.51,52; Baltimore.