Helmut Keupp

2.9k total citations
108 papers, 2.3k citations indexed

About

Helmut Keupp is a scholar working on Paleontology, Oceanography and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Helmut Keupp has authored 108 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 66 papers in Paleontology, 41 papers in Oceanography and 29 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Helmut Keupp's work include Paleontology and Stratigraphy of Fossils (57 papers), Geology and Paleoclimatology Research (28 papers) and Marine Biology and Ecology Research (28 papers). Helmut Keupp is often cited by papers focused on Paleontology and Stratigraphy of Fossils (57 papers), Geology and Paleoclimatology Research (28 papers) and Marine Biology and Ecology Research (28 papers). Helmut Keupp collaborates with scholars based in Germany, China and Japan. Helmut Keupp's co-authors include Joachim Reitner, Michael Steiner, Dirk Fuchs, Théo Engeser, Marc Gottschling, Ben Yang, Shixue Hu, Helmut Willems, Jörg Mutterlose and Günter Schweigert and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Helmut Keupp

104 papers receiving 2.1k citations

Peers

Countries citing papers authored by Helmut Keupp

Since Specialization

Citations

This map shows the geographic impact of Helmut Keupp'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 Helmut Keupp with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helmut Keupp more than expected).

Fields of papers citing papers by Helmut Keupp

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helmut Keupp. 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 Helmut Keupp. The network helps show where Helmut Keupp may publish in the future.

Co-authorship network of co-authors of Helmut Keupp

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Keupp. A scholar is included among the top collaborators of Helmut Keupp 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 Helmut Keupp. Helmut Keupp is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	(258–260) Proposals to eliminate contradiction between Articles 11.7 and 11.8 and to equate non‐fossil with fossil names of dinophytes for purposes of priority 2023 ·Taxon ·Malte Elbrächter, Marc Gottschling, Mona Hoppenrath, Helmut Keupp, Wolf‐Henning Kusber, Michael Streng, Urban Tillmann, Gerard J M Versteegh, Karin A F Zonneveld	4
2	A possible terrestrial egg cluster in driftwood from the Lower Jurassic (Late Pliensbachian) of Buttenheim (Franconia, Germany) 2022 ·SHILAP Revista de lepidopterología ·(unknown), Helmut Keupp, (unknown)	0
3	Lower Tithonian ammonites from the Chaman Bid Formation in northeastern Iran, Koppeh-Dagh Basin 2017 ·Mahmoud Reza Majidifard, (unknown), Helmut Keupp, (unknown)	5
4	First evidence of in situ rhabdopleurids (Pterobranchia, Hemichordata) from the Lower Jurassic of Southern Germany 2016 ·Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen ·Helmut Keupp, (unknown), Jörg Maletz	5
5	Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research 2014 ·Biogeosciences ·René Hoffmann, Julia A. Schultz, Rico Schellhorn, Erik Rybacki, Helmut Keupp, (unknown), Robert Lemanis, Stefan Zachow	42
6	Ultrastructure of Calcareous Dinophytes (Thoracosphaeraceae, Peridiniales) with a Focus on Vacuolar Crystal-Like Particles 2013 ·PLoS ONE ·(unknown), Helmut Keupp, Gilbert Tischendorf, (unknown), Marc Gottschling	12
7	Calcareous dinoflagellates from the Late Hauterivian (Early Cretaceous) of Frielingen, Germany 2013 ·Archive ouverte UNIGE (University of Geneva) ·Manuel F G Weinkauf, Helmut Keupp, Jörg Mutterlose	6
8	Taxonomy, morphology and phylogeny of Late Cretaceous spirulid coleoids (Cephalopoda) from Greenland and Canada 2012 ·Palaeontology ·Dirk Fuchs, Helmut Keupp, (unknown), Kazushige Tanabe	25
9	A new species of Hallucigenia from the Cambrian Stage 4 Wulongqing Formation of Yunnan (South China) and the structure of sclerites in lobopodians 2012 ·Bulletin of Geosciences ·Michael Steiner, Shixue Hu, Jing Liu, Helmut Keupp	37
10	An armoured Cambrian lobopodian from China with arthropod-like appendages 2011 ·Nature ·Jianni Liu, Michael Steiner, Jason A. Dunlop, Helmut Keupp, Degan Shu, Qiang Ou, Jian Han, Zhifei Zhang, Xingliang Zhang	54
11	The myth of the Triassic lytoceratid ammonite Trachyphyllites Arthaber, 1927, in reality an Early Jurassic Analytoceras hermanni Gumbel, 1861 2010 ·Acta Geologica Polonica ·René Hoffmann, Helmut Keupp	2
12	Verwirklichungschancen von Anfang an 2010 ·Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz ·Helmut Keupp	1
13	TIMING DEEP DIVERGENCE EVENTS IN CALCAREOUS DINOFLAGELLATES¹ 2008 ·Journal of Phycology ·Marc Gottschling, Susanne S. Renner, K J Sebastian Meier, Helmut Willems, Helmut Keupp	21
14	Stratigraphical investigations based on calcareous and siliceous phytoplankton assemblages from the Upper Cenozoic deposits of Messara Basin, Crete, Greece 2008 ·Zeitschrift der Deutschen Gesellschaft für Geowissenschaften ·(unknown), Helmut Keupp, (unknown)	4
15	Phylogeny of calcareous dinoflagellates as inferred from ITS and ribosomal sequence data 2005 ·Molecular Phylogenetics and Evolution ·Marc Gottschling, Helmut Keupp, Jörg Plötner, (unknown), Helmut Willems, Monika Kirsch	77
16	Non-invasive diagnostics in fossils - Magnetic Resonance Imaging of pathological belemnites 2005 ·Biogeosciences ·Daniel Mietchen, Helmut Keupp, B. Manz, Frank Volke	18
17	Abnormalities as natural experiments: a morphogenetic model for coiling regulation in planispiral ammonites 2002 ·Paleobiology ·António Checa, Takashi Okamoto, Helmut Keupp	27
18	Palaeoenvironmental interpretation of Late Albian calcareous dinoflagellate cysts from the Kirchrode I borehole (Lower Saxony Basin, NW Germany) 2001 ·Palaeogeography Palaeoclimatology Palaeoecology ·Helmut Keupp	12
19	Mesozoic and Cenozoic "calcispheres"- update in systematics. 1992 ·Journal of Nannoplankton Research ·(unknown), Helmut Keupp	1
20	Hasselbachtal, the section best displaying the Devonian-Carboniferous Boundary beds in the Rhenish Massif (Rheinisches Schifergebirge). 1984 ·Open Repository and Bibliography (University of Liège) ·R. Thomas Becker, Martin J.M. Bless, Carsten Brauckmann, (unknown), Ken Higgs, Helmut Keupp, Dieter Korn, (unknown), Eva Paproth, Patrick R. Rachebœuf, (unknown), Maurice Streel, (unknown)	11

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.

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