Mid-gut glands are preserved 3-dimensionally in calcium phosphate from the arthropods Isoxys and Oestokerkus, as in similar species within the Burgess Shale. [one hundred and one] Several different primordial marine arthropods remaining their remains In this particular Burgess shale style preservation, however the more substantial grain size of the Emu https://helenu630beh9.plpwiki.com/user