Fibrils in marsupial enamel tubules.
D000818:Animals; D003743:Dental Enamel / Q000166:cytology*; D006652:Histological Techniques; D008394:Marsupialia / Q000033:anatomy & histology*; D008855:Microscopy, Electron, Scanning; D009893:Opossums / Q000033:anatomy & histology