TY - BOOK ID - 148611464 TI - Yohoia Walcott and Plenocaris n. gen., arthropods from the Burgess Shale, Middle Cambrian, British Columbia PY - 1974 PB - Ottawa Geological Survey of Canada DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:148611464 AB - ER -