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Leonova |
1992 |
Ammonoidei. In: Leven,E.Ya., Leonova,T.B. & Dmitriev,V.Yu.: Perm' Darvaz-Zaalaiskoi zony Pamira: fuzulinidy, ammonoidei, stratigrafiya.
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Zhou & Liengjarern |
2004 |
Lower Permian perrinitid ammonoid faunas from Thailand.
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