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Authors whose works are in public domain in at least one jurisdiction

List of works by Helmut Keupp

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Phylogeny of calcareous dinoflagellates as inferred from ITS and ribosomal sequence data

scientific article
An armoured Cambrian lobopodian from China with arthropod-like appendages

scientific article
Non-invasive diagnostics in fossils - Magnetic Resonance Imaging of pathological belemnites

scientific article
The origin of Jurassic reefs: Current research developments and results

scientific article published in 1994
A new species of Hallucigenia from the Cambrian Stage 4 Wulongqing Formation of Yunnan (South China) and the structure of sclerites in lobopodians

article
Die kalkigen Dinoflagellaten-Zysten der borealen Unter-Kreide (Unter-Hauterivium bis Unter-Albium)

scientific article published in December 1981
Taphonomic traits of clay-hosted early Cambrian Burgess Shale-type fossil Lagerstätten in South China

article
A new priapulid assemblage from the early Cambrian Guanshan fossil Lagerstätte of SW China

article
Early Cambrian palaeobiogeography of the Zhenba–Fangxian Block (South China): Independent terrane or part of the Yangtze Platform?

article
Die kalkigen Dinoflagellatenzysten des Mittelalb bis Untercenoman von Escalles/Boulonnais (N-Frankreich)

scientific article published in 1987
Organismenverteilung in den D-Beds von Speeton (Unterkreide, England) unter besonderer Berücksichtigung der kalkigen Dinoflagellaten-Zysten

scientific article published in 1984
Spirula—a window to the embryonic development of ammonoids? Morphological and molecular indications for a palaeontological hypothesis

article
Calcigonellum DEFLANDRE 1948 und Echinodinella n.gen. (kalkige Dinoflagellaten-Zysten) aus der nordwestdeutschen Unter-Kreide

scientific article published in 1980
Liu et al. reply

scientific article published in Nature
Enigmabelus n. gen. (Enigmabelitidae n.f.), an Early Jurassic (Late Pliensbachian) belemnite with an outstanding rostrum morphology

scientific article
SAME BUT DIFFERENT: TWO NOVEL BICARINATE SPECIES OF EXTANT CALCAREOUS DINOPHYTES (THORACOSPHAERACEAE, PERIDINIALES) FROM THE MEDITERRANEAN SEA(1)

scientific article published on June 21, 2012
Mud mounds: A polygenetic spectrum of fine-grained carbonate buildups

scientific article published in 1995
Calcareous phytoplankton from the Barremian/Aptian boundary interval in NW Germany

scholarly article by Helmut Keupp & Jörg Mutterlose published December 1994 in Cretaceous Research
Terreneuvian small shelly faunas of East Yunnan (South China) and their biostratigraphic implications

article
Ultrastructure of Calcareous Dinophytes (Thoracosphaeraceae, Peridiniales) with a Focus on Vacuolar Crystal-Like Particles

scientific article published on January 8, 2013
Steuerungsprozesse der Entwicklung von Oberjura-Spongiolithen Süddeutschlands: Kenntnisstand, Probleme und Perspektiven

scientific article published in 1990
TIMING DEEP DIVERGENCE EVENTS IN CALCAREOUS DINOFLAGELLATES(1)

scientific article published on April 1, 2008
Eine neue pithonelloide Dinoflagellaten-Kalkzyste aus der Oberkreide von South Dakota/USA

scientific article published in December 1990
Calcareous Dinoflagellate Cysts from the Lower Cretaceous of Hole 761C, Wombat Plateau, Eastern Indian Ocean

Microbial carbonate crusts-a key to the environmental analysis of fossil spongiolites?

scientific article published in 1993
Phylogeny of the aptychi-possessing Neoammonoidea (Aptychophora nov., Cephalopoda)

scientific article published in March 2002
Thoracican cirripedes (Crustacea) from the Kimmeridgian of Brunn and Nusplingen (southern Germany), and their bearing on the origin of calanticid and scalpellid barnacles

scientific article
Neue Beispiele für den Regenerationsmechanismus bei verletzten und kranken Ammoniten

scientific article published in 1976
Recent obliquipithonelloid calcareous cysts ofScrippsiella patagnoica sp. nov. (Peridiniaceae, Dinophyceae) from plankton of the Golfo San Jorge (Patagonia, Argentina)

scholarly article by Rut Akselman & Helmut Keupp published November 1990 in Marine Micropaleontology
Taxonomic revision of “Onychoteuthis” conocauda Quenstedt, 1849 (Cephalopoda: Coleoidea)

Aspects of the origin of the Solnhofen lithographic limestone facies based on a new core drilling in the Maxberg quarry

scientific article published in 1994
Longibelusgen. nov., a new Cretaceous coleoid genus linking Belemnoidea and early Decabrachia

scientific article published in 2013
Desmoceras (Pseudouhligella) intrapunctatum n. sp. (Ammonoidea) aus dem Unter-Albium von NW-Madagaskar mit Ritzstreifen

scientific article published in December 2008
A critical review of Antarcticeras Doguzhaeva, 2017 – teuthid affinities can explain the poorly mineralized phragmocone

article
Complete ammonoid jaw apparatuses from the Solnhofen plattenkalks: implications for aptychi function and microphagous feeding of ammonoids

New agglutinated polychaete worm-tubes from the Lower Jurassic (Late Pliensbachian) of Southern Germany

article
Calcareous dinoflagellate cysts and the Turonian nutrient crisis – Data from the upper Turonian of the Lower Saxony Basin (northern Germany)

scientific article published in September 2015
Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research

scientific article published on 22 May 2014
Acanthoteuthis problematica Naef, 1922, an almost forgotten taxon and its role in the interpretation of cephalopod arm armatures

scholarly article published 1 September 2013
Early teleost otolith morphogenesis observed in the Jurassic of Franconia, Bavaria, southern Germany

scientific article published in 2022
Non-invasive diagnostics in pathological fossils by magnetic resonance imaging

scientific article published on 14 March 2005
Ischnochiton marloffsteinensis n. sp., eine Polyplacophore aus dem fränkischen Lias

scientific article published in June 1988
Liapora neubigi n. g. et n. sp., the first Early Jurassic scyphopolyp with chitino-phosphatic periderm

scientific article published in November 2019
Sublethal punctures in body chambers of Mesozoic ammonites (forma aegrafenestra n. f.), a tool to interpret synecological relationships, particularly predator-prey interactions

scientific article published in 2006
Neochoiaella n. gen. (Demospongeae, Choiaellidae)—a second poriferan Lazarus taxon from the Solnhofen Plattenkalk (Upper Jurassic, Southern Germany)?

scientific article published on 21 February 2012
Establishing an Agenda for Calcareous Dinoflagellate Research (Thoracosphaeraceae, Dinophyceae) including a Nomenclatural Synopsis of Generic Names

scientific article published on November 2008

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