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.
Devonian eustatic fluctuations in Euramerica
1985776 citationsJ. G. Johnson, Gilbert Klapper et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
hero ref
Countries citing papers authored by Gilbert Klapper
Since
Specialization
Citations
This map shows the geographic impact of Gilbert Klapper'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 Gilbert Klapper with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gilbert Klapper more than expected).
This network shows the impact of papers produced by Gilbert Klapper. 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 Gilbert Klapper. The network helps show where Gilbert Klapper may publish in the future.
Co-authorship network of co-authors of Gilbert Klapper
This figure shows the co-authorship network connecting the top 25 collaborators of Gilbert Klapper.
A scholar is included among the top collaborators of Gilbert Klapper 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 Gilbert Klapper. Gilbert Klapper is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Barrick, James E., Gilbert Klapper, Mark A. Kleffner, & Haraldur Karlsson. (2011). Conodont Biostratigraphy and Stable Isotope Chemostratigraphy of the Lower Henryhouse Formation (Gorstian-early Ludfordian, Ludlow, Silurian), Southern Oklahoma, USA. 51.8 indexed citations
3.
Johnson, J. G., Gilbert Klapper, & Charles A. Sandberg. (2010). Late Devonian eustatic cycles around margin of Old Red Continent. Annales de la Société géologique de Belgique.8 indexed citations
Klapper, Gilbert, et al.. (1993). Graphic correlation of the Frasnian Upper Devonian Composite. Geological Society of America, Abstracts with Programs; (United States).1 indexed citations
7.
Goodfellow, Wayne D., et al.. (1988). The Frasnian-Famennian Extinction: Current Results and Possible Causes. 9–21.33 indexed citations
8.
Klapper, Gilbert. (1987). On the genus fungulodus conodonta. Weiti gushengwu xuebao. 4(4). 369–374.4 indexed citations
9.
Klapper, Gilbert & H. Richard Lane. (1985). Upper Devonian (Frasnian) conodonts of the Polygnathus biofacies, N.W.T., Canada. Journal of Paleontology. 59(4). 904–951.70 indexed citations
10.
Klapper, Gilbert, et al.. (1984). The enigmatic Middle Ordovician fossil Archeognathus and its relations to conodonts and vertebrates. Journal of Paleontology. 58(4). 949–976.10 indexed citations
11.
Klapper, Gilbert & James E. Barrick. (1983). Middle Devonian (Eifelian) conodonts from the Spillville Formation in northern Iowa and southern Minnesota. Journal of Paleontology. 57(6). 1212–1243.29 indexed citations
Johnson, David B. & Gilbert Klapper. (1981). New Early Devonian conodont species of central Nevada. Journal of Paleontology. 55(6). 1237–1250.13 indexed citations
14.
Klapper, Gilbert & J. G. Johnson. (1980). Endemism and dispersal of Devonian conodonts. Journal of Paleontology. 54(2). 400–455.162 indexed citations
15.
Klapper, Gilbert. (1979). Late Silurian and Early Devonian Graptolite, Brachiopod and Coral Faunas from Northwestern and Arctic Canada. Geoscience Canada. 6(4).10 indexed citations
16.
Johnson, J. G. & Gilbert Klapper. (1978). Devonian brachiopods and conodonts from central Oregon. Journal of Paleontology. 52(2). 295–299.2 indexed citations
17.
Klapper, Gilbert, et al.. (1968). Two new conodont species from Middle-Upper Devonian boundary beds of Indiana and New York. Journal of Paleontology. 42(4). 1066–1075.18 indexed citations
18.
Glenister, Brian F. & Gilbert Klapper. (1966). Upper Devonian conodonts from the Canning Basin, Western Australia. Journal of Paleontology. 40(4). 777–842.70 indexed citations
19.
Ziegler, Willi, et al.. (1964). The validity of the name Polygnathus (Conodonta, Devonian and lower Carboniferous). Journal of Paleontology. 38(2). 421–423.14 indexed citations
20.
Klapper, Gilbert. (1958). An Upper Devonian conodont fauna from the Darby Formation of the Wind River Mountains, Wyoming. Journal of Paleontology. 32(6). 1082–1093.10 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.