TY - BOOK ID - 132701811 TI - Aalenian ammonites and strata of western Canada AU - Poulton, T.P. AU - Tipper, H.W. PY - 1991 SN - 0660138484 PB - Ottawa DB - UniCat KW - Palaeozoology KW - Jurassic period KW - Canada: West UR - https://www.unicat.be/uniCat?func=search&query=sysid:132701811 AB - ER -