2. Drugg, Warren S. Loeblich, A. R., Jr. 1967 Tulane Studies in Geology 5 181-194 Some Eocene and Oligocene Phytoplankton from the Gulf Coast, U.S.A.
3. Hopping, C.A. 1967 Review of Paleobotany and Palynology 2 23-48 Palynology and the Oil Industry
4. Loeblich, Alfred R. Jr. Tappan, H. 1961 Proceedings of the Biological Society of Washington. 1961 213-234 Remarks on the Systematics of the Sarkodina (Protozoa), renamed Homonyms and new and validated Genera.
5. Loeblich, Alfred R. Jr. Tappan, H. 1962 Proceedings of the Biological Society of Washington 75 107-114 Six new Generic names in the Mycetozoida (Trichidae) and Foraminiferida (Fischerinidae, Bulinindae, Caucasinidae, and Pleurostomellidae), and a redescription of Loxostomum (Loxostomidae, New Family).
6. Loeblich, Alfred R., Jr. Tappan, H. 1963 Proceedings of the Biological Society of Washington Vol. 76 pp. 191-196 Type fixation and validation of certain calcareous nannoplankton genera
7. Loeblich, Alfred R. Jr. Tappan, H. 1964 Journal of the Geological Society of India 5 5-39 Foraminiferal Classification and Evolution
8. Loeblich, Alfred R. Jr. Tappan, H. 1968 Society of Protozoologists 15 185-192 Annotated Index to Genera, Subgenera and Suprageneric Taxa of the Ciliate Order Tintinnida.
9. Loeblich, Alfred R. Jr. Drugg, W. S. 1968 Tulane Studies in Geology 6 129-137 New Acritarchs from the early Devonian (Late Gedinnian) Haragan formation of Oklahoma, U.S.A.
10. Loeblich, Alfred R. Jr. Tappan, H. 1968 Journal of Paleontology 42 584-598 Annotated Index and Bibliography of the Calcareous Nannoplankton II.
11. Loeblich, Alfred R. Jr. Tappan, H. 1969 Journal of Paleontology 43 568-588 Annotated Index and Bibliography of the Calcareous Nannoplankton III.
12. Loeblich, Alfred R. Jr. 1969 Proceedings of the North American Paleontological Convention. 705-788 Morphology, Ultrastructure and Distribution of Paleozoic Acritarchs.
13. Loeblich, Alfred R. Jr. Tappan, H. 1969 Empresa Nacional "Adaro" 1 45-57 Revista Espanola De Micropaleontologia
14. Loeblich, Alfred R., Jr. Tappan, H. 1970 Proceedings of the Biological Society of Washington vol. 83, no. 24 261-266 Thysanoprobolus, a New Acritarch Genus From the Early Devonian (Late Gedinnian) Haragn Formation of Oklahoma, U.S.A.
15. Loeblich, Alfred R., Jr. Loeblich, A.R. III 1970 Phycologia vol. 9 199-203 Index to the genera, subgenera, and sections of the Pyrrhophyta
16. Loeblich, Alfred R. Jr. Tappan, H. 1970 Phycologia vol. 9 157-174 Annotated index and bibliography of the calcareous nannoplankton V.
17. Loeblich, Alfred R. Jr. 1970 Phycologia 9 39-43 "Dicommopalla," a new acritarch genus from the Dillsboro Formation (Upper Ordovician) of Indiana, U.S.A.
18. Loeblich, Alfred R. Jr. Loeblich, A. R. III 1970 Journal of Paleontology 44 536-543 Index to the Genera, Subgenera, and sections of the Pyrrhophyta, IV.
19. Loeblich, Alfred R. Jr. Tappan, H. 1970 Journal of Paleontology 44 558-574 Annotated Index and Bibliography of the Calcareous Nannoplankton, IV.
20. Loeblich, Alfred R., Jr. Tappan, H. 1971 Journal of Paleontology vol. 45, no. 5 899-901, pls. 103-104 New Observations of the Ultrastructure of Asketopalla, an Ordovician Acritarch
21. Loeblich, Alfred R., Jr. Tappan, H. 1971 Phycologia 10(4) 315-339 Annotated Index and Bibliography of the Calcareous Nannoplankton VI
22. Loeblich, Alfred R., Jr. Tappan, H. 1971 Trans. Amer. Micros. Soc. 90(2) 182-188 Two New Orthosphaeridium (Acritarcha) From the Middle and Upper Ordovician
23. Loeblich, Alfred R., Jr. Tappan, H. 1973 Journal of Paleontology v. 47, no. 4 715-759 Annotated Index and Bibliography of the Calcareous Nannoplankton VII
24. Loeblich, Alfred R. Jr. Wicander, E. R. 1974 N. Jb. Geol. Palaont. Mh. v. 12 707-711 New Early Devonian (Late Gedinnian) microphytoplankton: Demorhethium lappaceum n.g., n. sp., from the Bois d'Arc Formation of Oklahoma, U.S.A.
25. Loeblich, Alfred R. Jr. Tappan, H. 1976 Journal of Paleontology v. 50, no. 2 301-308 Some New and Revised Organic-walled Phytoplankton Microfossil Genera
26. Loeblich, Alfred R. Jr. Tappan, H. 1978 Journal of Paleontology v. 52, no. 6 1233-1287 Some Middle and Late Ordovician Microphytoplankjton From Central North America
27. Loeblich, Alfred R. Jr. Tappan, H. 1978 Journal of Paleontology v. 52, no. 6 1390-1392 The Coccolithophorid Genus Calsidiscus Kamptner and its Synonyms
28. Loeblich, Alfred R. Jr. Tappan, H. 1981 Journal of Foraminiferal Research v. 11, no. 2 159-264 Suprageneric Revisions of Some Calcareous Foraminiferida
29. Loeblich, Alfred R. Jr. Tappan, H. 1982 J. Micropaleontol. 1 55-69 A Revision of Mid-Cretaceous Textularian Foraminifers From Texas
32. Tappan, Helen Loeblich, A. R., Jr. 1968 Journal of Paleontology 42 1378-1394 Lorica Composition of Modern and Fossil Tintinnida (Ciliate Protozoa), Systematics, Geologic Distribution, and some new Tertiary Taxa.
33. Tappan, Helen Loeblich, A. R., Jr. 1969 The Encyclopedia of Marine Resources 272-276 Foraminifera
34. Tappan, Helen 1970 American Chemical Society 14th Annual Report on Research. 14 246 Quantification of Fossil Phytoplankton Fluctuations.
35. Tappan, Helen Loeblich, A. R., Jr. 1971 Micropaleontology vol. 17, no. 4 385-410 Surface Sculpture of the Wall in Lower Paleozoic Acritarchs
36. Tappan, Helen Loeblich, A. R., Jr. 1971 Symposium on Palynology of the Late Cretaceous and Early Tertiary 127 247-340 Geobiologic Implications of Fossil Phytoplankton Evolution and Time-Space Distribution
37. Tappan, Helen 1971 McGraw-Hill Encyclopedia of Science and Technology 5 467-475 Foraminiferida
38. Tappan, Helen Cornell, W. C.; Wicander, E. R. 1972 Abstracts of Research 64-65 Quantification of Fossil Phytoplankton Fluctuations
39. Tappan, Helen Loeblich, A. R., Jr. 1973 Earth-Science Reviews 9 207-240 Evolution of the Oceanic Plankton
40. Tappan, Helen 1974 Maritime Sediments Spec. Pub. 1 301-313 Systematics and the Species Concept in Benthonic Foraminiferal Taxonomy
41. Tappan, Helen 1976 Geological Society of America Bulletin v. 87 633-639 Possible Eucaryotic Algae (Bangiophycidae) Among Early Proterozoic Microfossils
42. Tappan, Helen Loeblich, A. R., Jr. 1977 Trans. Amer. Microsc. Soc. 96(4) 497-505 Peridinialean Cyst Affinity, Rather Than Gymnodinialean Motile Stage, of the Late Cretaceous Dinoflagellate Dinogymnium
43. Tappan, Helen 1979 Cretaceous-Tertiary Boundary Events Symposium II. Proceedings 13-21 Protistan Evolution and Extinction at the Cretaceous/Tertiary Boundary
44. Tappan, Helen Loeblich, A. R., Jr. 1982 Synopsis and Classification of Living Organisms vol. 1 527-560 Granuloreticulosa
45. Tappan, Helen 1986 Journal of Paleontology v. 60, no. 3 545-554 Phytoplankton: Below the Salt at the Global Table