A Miopetaurista (Rodentia, Sciuridae) cranium from the Middle Miocene of Bavaria (Germany) and brain evolution in flying squirrels

Abstract

F I G . 1 . Phylogenetic relationships and age for Sciuridae and Ischyromyidae discussed in the text. Within the Sciurinae, the flying (Pteromyini) and tree squirrel (Sciurini) clades are highlighted and Miopetaurista crusafonti is indicated in bold. Tree topology is mostly based on Korth & Emry (1991), Meng et al. (2003) and Casanovas-Vilar et al. (2018) (see text for details). This tree is used to perform the phylogenetic generalised least squares (PGLS) analyses (see text for details).F I G . 8 . Endocasts of various extinct and extant rodents in dorsal, ventral and right lateral views. A, Petaurista petaurista (USNM 589079). B, Glaucomys volans (AMNH 240290). C, Cedromus wilsoni (USNM 256584). D, Protosciurus cf. rachelae (YPM 14737). E, Paramys delicatus (AMNH 12506). Scale bars represent 10 mm.