Tympanosquamous fissure of temporal boneCheck our Apps3D Heart AnatomyXR Anatomy3D Osteology 3D OsteologyAll visual materials are sourced directly from the app 3D OsteologyLearn MoreThe tympanosquamous fissure is situated between the tympanic part and the squama. It continues the petrosquamous fissure and petrotympanic fissure laterally. (8,15)