TY - GEN AU - Schopf,T J AU - Ryland,J S TI - Bryozoology SN - 0036-8075 PY - 1969///0109 KW - Animals KW - Biological Evolution KW - Bryozoa KW - classification KW - Italy KW - Models, Biological KW - Paleontology KW - Zoology N1 - Publication Type: Journal Article UR - https://doi.org/10.1126/science.162.3857.1034 ER -