Vezelay - Basilique Sainte-Marie-Madeleine

The central tympanum over the entrance of the Basilique Sainte-Marie-Madeleine leading from the narthex to the nave has three archivolts.

The middle archivolt is composed out of 29 round medailons. Here is one of these medailons, depicting a very strange chimare out of a cow or bull - and a fishtail. I have seen mermaids and mermen so far - but this is the first mercow.