Fig. 10From: On the development of the chondrocranium and the histological anatomy of the head in perinatal stages of marsupial mammalsCross-section of Dromiciops gliroides (ZIUT, HL 19Â mm) at the level of the caudal part the petrosal (pars canalicularis). Note the extensive contribution of the ctpp to the tympanic floor. Numbers of the histological serial sections are indicated at the bottom right of each figure. Numbers ascend in caudal directionBack to article page