Markov G. N. & Vergiev S. 2010. — First report of cf. Protanancus (Mammalia, Proboscidea, Amebelodontidae) from Europe. Geodiversitas 32 (3): 493-500.

Three molars from northeast Bulgaria are attributed to cf. Protanancus sp., based on their distinctive morphology. These are the first finds from Europe referable to the amebelodontid genus Protanancus, hitherto known from Africa and Asia. The material from NE Bulgaria differs from both named species of the genus, P. macinnesi and P. chinjiensis, displaying a combination of derived and primitive characters.