Author: TAPPAN (Helen)

Description

‘-‘-“ Tappan (Helen). Forarninifera from the Duck Creek formation of Oklahoma and Texas: a dissertation submitted to (the University of Chicago).,. for the degree of Doctor of Philosophy...].9L2.. •Repi’inted from the Journ1.of Paleontology, Vol. 17, No. , September, 19L.3. fwith a bibliography.J pp. LL76—517. Plates. 0 8 . 1Chicago.,l9L.3.

Card ID: 232

Author: TAPPAN (Helen)

Description

L’-• Tappan (Helen). See WASHINGTON (COLUMBIA). Smithsonian Institution. •Smiths6nian miscellaneous collections. Vol. 117. No. .15. LOEBLICH (Alfred IL) and Tappan (Helen). The For ii1eral genus Triplasia’Reuss, 1854, Washgton, 1952.

Card ID: 233

Author: LOLICH (Alfred ichard) and TAPPAN (Helen)

Description

— Lc%3 LOLICH (Alfred ichard) and Tappan (Helen). The Ioraminit’era1. genus Triplasia Beuss, 1854. with. . .plates. WasMngon, 1952. WASHINGTON (COLUMBIA). Smithsonian Institutit,n. Smithsonian miscellaneous collections. Vol. 117. No. 15.

Card ID: 383