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House & Ziegler |
1977 |
The Goniatite and Conodont sequences in the early Upper Devonian at Adorf, Germany.
Geologica et Palaeontologica, 11: 69-108, fig.1-4, pl.1-6; Marburg.
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|
Miller |
1938 |
Devonian ammonoids of America.
Special Papers, Geological Society of America, 14: 1-262, fig.1-41, pl.1-39; Baltimore.
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