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Glenister, Baker & Furnish |
1990 |
Additional Early Permian ammonoid cephalopods from Western Australia. [Glenister,B.F., Baker,C., Furnish,W.M. & Thomas,G.A.]
Journal of Paleontology, 64 (3): 392-399, fig.1-4, 1tab.; Tulsa, Okla.
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Vasicek & Kullmann |
1988 |
Eine Ammonoideen-Fauna vom Sosio-Typ (Guadalupian, Ober-Perm) aus Kurdistan (Irak).
Palaeontographica, Abt.A, 204 (1-3): 95-115, fig.1-5, pl.1-2; Stuttgart.
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Vasicek |
1988 |
Upper Permian Ammonoidea from Kurdistan, NE Iraq.
In: Wiedmann,J. & Kullmann,J. (eds.), Cephalopods - Present and Past, 577-591, 3 pls., 16 figs., Stuttgart.
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