RT Journal Article SR Electronic T1 Development of the Brachiopoda JF American Journal of Science JO Am J Sci FD American Journal of Science SP 343 OP 357 DO 10.2475/ajs.s3-41.244.343 VO s3-41 IS 244 A1 Beecher, Charles Emerson YR 1891 UL http://www.ajsonline.org/content/s3-41/244/343.abstract AB