Zunino, M. (2013). The first dung beetle retrieved from Coprinisphaeridae ichnofossils: Phanaeus violetaen. sp. (Coleoptera: Scarabaeinae) from Ecuadorian cangahua balls. Instituto de Ecología, A.C.
Chicago-čujuhus (17. p.)Zunino, Mario. The First Dung Beetle Retrieved from Coprinisphaeridae Ichnofossils: Phanaeus Violetaen. Sp. (Coleoptera: Scarabaeinae) from Ecuadorian Cangahua Balls. Instituto de Ecología, A.C, 2013.
MLA-čujuhus (9. p.)Zunino, Mario. The First Dung Beetle Retrieved from Coprinisphaeridae Ichnofossils: Phanaeus Violetaen. Sp. (Coleoptera: Scarabaeinae) from Ecuadorian Cangahua Balls. Instituto de Ecología, A.C, 2013.
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