RT Journal Article
SR Electronic
T1 On the "geodes" of the Keokuk Formation and the genus Biopalla, with some species
JF American Journal of Science
JO Am J Sci
FD American Journal of Science
SP 366
OP 370
DO 10.2475/ajs.s3-15.89.366
VO s3-15
IS 89
A1 Wallace, Samuel Jacob
YR 1878
UL http://www.ajsonline.org/content/s3-15/89/366.abstract
AB