S.R. Manchester, X.‐P. Xiang og Q.Y. Xiang (2010). «Fruits of cornelian cherries (Cornaceae: Cornus subg. Cornus) in the Paleocene and Eocene of the Northern Hemisphere». International Journal of Plant Sciences. 171 (8): 882–891. ISSN1537-5315. doi:10.1086/655771.
S.R. Manchester, X.‐P. Xiang og Q.Y. Xiang (2010). «Fruits of cornelian cherries (Cornaceae: Cornus subg. Cornus) in the Paleocene and Eocene of the Northern Hemisphere». International Journal of Plant Sciences. 171 (8): 882–891. ISSN1537-5315. doi:10.1086/655771.