Labels:crt screen | earth | fence | person | plant | sky | stairs | tree | windowpane | zebra OCR: InX ... :. nostril eve median eve sensory ftelds .... CEPHALASPIS is typical UIaLU Silurian throurgh the Most Ter of rroisp Ctosely rolated cephalaspids had falened ubq ostracoderma {primitive, jawless head shield pue scale -covere] fish). rnnging ron the Upper lory Length 6 in VERTEBRATE mediar fields Eupical Devonian jrolsp cIosely rclater flaiened boar ostracodema nrimitivo hearl toveed rnnginn from Voner Leth FOSSILS