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Authors |
Year |
Title |
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Girty |
1911 |
The fauna of the Moorefield Shale of Arkansas.
Bulletin, U.S. Geological Survey, 439: 1-148, pl.1-15; Washington.
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|
|
Gordon |
1957 |
Mississippian Cephalopods of Northern and Eastern Alaska.
Professional Papers, U.S. Geological Survey, 283: 1-61, fig.1-61, pl.1-6; Washington.
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Gordon |
1965 |
Carboniferous Cephalopods of Arkansas.
Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
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|
|
Gordon |
1970 |
Carboniferous ammonoid zones of the south-central and western United States.
C.R. Sixième Congrès Internat. Stratigraphie et Géologie Carbonifère, Sheffield 1967, 2: 817-826, 2 text-figs., Sheffield.
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|
Gordon |
1971 |
Goniatites americanus n. sp., a late Meramec (Mississippian) index fossil.
Professional Paper US Geol.Survey 750-C: C39-C43, fig.1-3, 1 tab.; Washington.
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|
|
Ruzhencev |
1975 |
Ammonoidei i khronostratigrafiia Karbona vostochnoi Sibiri.
Paleontologicheskii Zhurnal, 1975 (2): 28-45, fig.1-7, pl.1,2; Moskva.
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|
Smith |
1903 |
The Carboniferous Ammonoids of America.
Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.
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