Helen Tappan

4.8k total citations · 1 hit paper
50 papers, 3.5k citations indexed

About

Helen Tappan is a scholar working on Paleontology, Atmospheric Science and Oceanography. According to data from OpenAlex, Helen Tappan has authored 50 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Paleontology, 21 papers in Atmospheric Science and 19 papers in Oceanography. Recurrent topics in Helen Tappan's work include Geology and Paleoclimatology Research (21 papers), Paleontology and Stratigraphy of Fossils (19 papers) and Marine Biology and Ecology Research (11 papers). Helen Tappan is often cited by papers focused on Geology and Paleoclimatology Research (21 papers), Paleontology and Stratigraphy of Fossils (19 papers) and Marine Biology and Ecology Research (11 papers). Helen Tappan collaborates with scholars based in United States, United Kingdom and Netherlands. Helen Tappan's co-authors include Alfred R. Loeblich, R. H. Hedley, Richard C. Moore, R. J. Harrison, William J. L. Felts, John J. Lee and Jere H. Lipps and has published in prestigious journals such as Earth-Science Reviews, Geological Society of America Bulletin and Palaeogeography Palaeoclimatology Palaeoecology.

In The Last Decade

Helen Tappan

41 papers receiving 3.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Foraminiferal Genera and Their Classification

1988 2.4k citations Alfred R. Loeblich, Helen Tappan profile →

Peers

Helen Tappan

AS

PALEO

OCEAN

ECOLO

GEOPH

Robert N. Ginsburg United States

Jan Jansonius Canada

Hans R. Thierstein Switzerland

Hisatake Okada Japan

Colette Vergnaud-Grazzini France

Domenico Rio Italy

Dieter Meischner Germany

Erle G. Kauffman United States

Erlend Martini Germany

Yves Lancelot France

Robert N. Ginsburg United States

Helen Tappan

1.5k ×0.6

AS

1.5k ×0.9

PALEO

918 ×0.6

OCEAN

828 ×0.9

ECOLO

468 ×0.9

GEOPH

Citations per year, relative to Helen Tappan Helen Tappan (= 1×) peers Robert N. Ginsburg

Countries citing papers authored by Helen Tappan

Since Specialization

Citations

This map shows the geographic impact of Helen Tappan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Helen Tappan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helen Tappan more than expected).

Fields of papers citing papers by Helen Tappan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helen Tappan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Helen Tappan. The network helps show where Helen Tappan may publish in the future.

Co-authorship network of co-authors of Helen Tappan

This figure shows the co-authorship network connecting the top 25 collaborators of Helen Tappan. A scholar is included among the top collaborators of Helen Tappan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Helen Tappan. Helen Tappan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Loeblich, Alfred R. & Helen Tappan. (1987). Discocyclina Gümbel, 1870 (Foraminiferida): proposed designation of Orbitolites prattii Michelin, 1847 as type species. The Bulletin of zoological nomenclature. 44. 162–163. 3 indexed citations

2.

Loeblich, Alfred R. & Helen Tappan. (1987). Sorites Ehrenberg, 1839 (Foraminiferida): proposed designation of Nautilus orbiculus Forsk\aal, 1775 as type species. The Bulletin of zoological nomenclature. 44. 160–161. 3 indexed citations

3.

Loeblich, Alfred R. & Helen Tappan. (1982). A revision of mid-Cretaceous textularian foraminifers from Texas. Journal of Micropalaeontology. 1(1). 55–69. 10 indexed citations

4.

Loeblich, Alfred R. & Helen Tappan. (1982). Classification of the Foraminiferida. 6. 22–36. 11 indexed citations

5.

Tappan, Helen. (1981). Extinction or survival and diversification: Patterns of selectivity during Paleozoic crises. 449. 54. 1 indexed citations

6.

Tappan, Helen. (1976). Possible eucaryotic algae (Bangiophycidae) among early Proterozoic microfossils. Geological Society of America Bulletin. 87(4). 633–633. 22 indexed citations

7.

Tappan, Helen & Alfred R. Loeblich. (1973). Evolution of the oceanic plankton. Earth-Science Reviews. 9(3). 207–240. 139 indexed citations

8.

Loeblich, Alfred R. & Helen Tappan. (1971). New observations of the ultrastructure of Asketopalla, an Ordovician acritarch. Journal of Paleontology. 45(5). 899–901. 8 indexed citations

9.

Tappan, Helen & Alfred R. Loeblich. (1968). Lorica composition of modern and fossil Tintinnida (ciliate Protozoa), systematics, geologic distribution, and some new Tertiary taxa. Journal of Paleontology. 42(6). 1378–1394. 32 indexed citations

10.

Loeblich, Alfred R. & Helen Tappan. (1968). Annotated Index to Genera, Subgenera and Suprageneric Taxa of the Ciliate Order Tintinnida. The Journal of Protozoology. 15(1). 185–192. 18 indexed citations

11.

Tappan, Helen. (1968). Primary production, isotopes, extinctions and the atmosphere. Palaeogeography Palaeoclimatology Palaeoecology. 4(3). 187–210. 145 indexed citations

12.

Loeblich, Alfred R., et al.. (1968). 106 : ANNOTATED INDEX OF FOSSIL AND RECENT SILICOFLAGELLATES AND EBRIDIANS WITH DESCRIPTIONS AND ILLUSTRATIONS OF VALIDLY PROPOSED TAXA. 43 indexed citations

13.

Loeblich, Alfred R. & Helen Tappan. (1964). Foraminiferal Classification and Evolution. Journal of the Geological Society of India. 5(1). 5–40. 10 indexed citations

14.

Tappan, Helen, et al.. (1964). Part C, Protista 2, vol. 1 & 2, v.1, Ch.1, p. 1-163. Latin American Theatre Review (The University of Kansas). 1 indexed citations

15.

Loeblich, Alfred R. & Helen Tappan. (1963). Four New Recent Genera of Foraminiferida. The Journal of Protozoology. 10(2). 212–215. 5 indexed citations

16.

Loeblich, Alfred R. & Helen Tappan. (1962). Type localities of some American Cretaceous foraminiferal genotype species described by Ehrenberg. Journal of Paleontology. 36(2). 352–354. 3 indexed citations

17.

Tappan, Helen. (1961). Foraminifera from Pleistocene Gubik Formation of Northern Alaska: ABSTRACT. AAPG Bulletin. 45. 2 indexed citations

18.

Loeblich, Alfred R. & Helen Tappan. (1961). The Status of the Foraminiferal Genera Ammodiscus Reuss, and Involutina Terquem. Micropaleontology. 7(2). 189–189. 7 indexed citations

19.

Loeblich, Alfred R. & Helen Tappan. (1954). Emendation of the foraminiferal genera Ammodiscus Reuss, 1862. and Involutina Terquem. 1862. Biodiversity Heritage Library (Smithsonian Institution). 7 indexed citations

20.

Loeblich, Alfred R. & Helen Tappan. (1952). THE FORAMINIFERAL GENUS TRIPLASIA REUSS, 1854. Biodiversity Heritage Library (Smithsonian Institution). 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact