Fig. 2From: On the development of the chondrocranium and the histological anatomy of the head in perinatal stages of marsupial mammalsCross-sections of Monodelphis domestica (PND 12, HL 8.5 mm) at the ethmoidal region, with detail of the vomeronasal complex. The asterisk (*) in c indicates the “outer bar” [49] or “fibula reuniens” [215] which is a lateral portion of the paraseptal cartilage. The double asterisk (**) in c indicates the lumen of VNO opening in the nasopalatine duct. Numbers of the histological serial sections are indicated at the bottom left of each figureBack to article page