RT Journal Article SR Electronic T1 Bryozoan Morphological and Genetic Correspondence: What Does It Prove? JF Science JO Science FD American Association for the Advancement of Science SP 318 OP 319 DO 10.1126/science.251.4991.318-a VO 251 IS 4991 A1 LEVINTON, JEFFREY YR 1991 UL http://science.sciencemag.org/content/251/4991/318.2.abstract AB