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2023
1 Amundsen, Madelen; Hammer, Øyvind; Nakrem, Hans Arne.
Massedød hos trilobitter, ordovicium, Marokko.. Stein 2023 ;Volum 2023.(4) s. 18-22
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2 Delsett, Lene Liebe; Pyenson, Nicholas; Miedema, Feiko; Hammer, Øyvind.
Is the hyoid a constraint on innovation? A study in convergence driving feeding in fish-shaped marine tetrapods. Paleobiology 2023 ;Volum 49.(4) s. 684-699
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3 Dupret, Vincent; Byrne, Hannah; Challands, Tom; Hammer, Øyvind; Higgs, Kenneth; Long, John; Niedźwiedzki, Grzegorz; Qvarnström, Martin; Stössel, Iwan; Ahlberg, Per Erik.
Non-tetrapod sarcopterygians from the Valentia Slate Formation (Givetian, Devonian) of the Iveragh Peninsula, south-western Ireland: systematic reappraisal and palaeobiogeo-graphic implications. Spanish journal of palaeontology 2023 ;Volum 38.(1) s. -
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4 Dupret, Vincent; Byrne, Hannah M.; Castro, Nélia Sofia Cardoso; Hammer, Øyvind; Higgs, Kenneth T.; Long, Johan A.; Niedźwiedzki, Grzegorz; Qvarnström, Martin; Stössel, Iwan; Ahlberg, Per E..
The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications. PLOS ONE 2023 ;Volum 18.(2) s. -
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5 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hammer, Øyvind; Hurum, Jørn Harald; Mørk, Atle.
Bivalve beds reveal rapid changes in ocean oxygenation in the Boreal Middle Triassic – a case study from Svalbard, Norway. Norwegian Journal of Geology 2023 ;Volum 103. s. -
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6 Engelschiøn, Victoria Sjøholt; Roberts, Aubrey Jane; With, Ruben; Hammer, Øyvind.
Exceptional X-Ray contrast: Radiography imaging of a Middle Triassic mixosaurid from Svalbard. PLOS ONE 2023 ;Volum 18.(5) s. e0285939-
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7 Hammer, Øyvind.
En flyndre fra Økern. Paleobloggen 2023
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8 Hammer, Øyvind.
Levende begravet – en skrekkhistorie fra middelalderen. Paleobloggen 2023
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9 Hurum, Jørn Harald; Hammer, Øyvind; Friis, Henrik; Müller, Axel; Engelschiøn, Victoria Sjøholt; Strøm, Marianne.
En kort veiledning for de nye utstillingene i Geologisk hus, Naturhistorisk museum, Universitetet i Oslo. Stein 2023 (1) s. 3-13
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10 Kear, Benjamin P.; Engelschiøn, Victoria Sjøholt; Hammer, Øyvind; Roberts, Aubrey Jane; Hurum, Jørn Harald.
Earliest Triassic ichthyosaur fossils push back oceanic reptile origins. Current Biology 2023 ;Volum 33.(5) s. R178-R179
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11 Little, Crispin T.S.; Gale, Andy S; Williams, Matt; Hammer, Øyvind; Fernandez, Vincent.
Bivalve-barnacle pseudoplanktonic colonisation of wood from the Toarcian, Lower Jurassic, Strawberry Bank Lagerstätte, Somerset, UK. Acta Palaeontologica Polonica 2023 ;Volum 68.(1) s. 133-142
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12 Nakrem, Hans Arne; Lindemann, Franz-Josef; Hurum, Jørn Harald; Hammer, Øyvind.
Fossils From the Arctic in the Collections of the Natural History Museum in Oslo, Norway.. Collections: A Journal for Museum and Archives Professionals 2023 ;Volum 19.(3) s. -
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13 Nielsen, Arne Thorshøj; Ahlberg, per; Ebbestad, Jan Ove R.; Hammer, Øyvind; Harper, David A.T.; Lindskog, Anders; Rasmussen, Christian; Stouge, Svend.
The Ordovician of Scandinavia: a revised regional stage classification. Geological Society Special Publication 2023 ;Volum 532. s. 267-315
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14 Park, Junhee; Stein, Holly Jayne; Hannah, Judith Louise; Georgiev, Svetoslav V.; Hammer, Øyvind; Olaussen, Snorre.
Re-Os geochronology of the Middle to Upper Jurassic marine black shales in the Agardhfjellet Formation, Central Spitsbergen, Svalbard: A cornerstone for global faunal correlation and Os isotopic change. Palaeogeography, Palaeoclimatology, Palaeoecology 2023 ;Volum 633. s. -
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2022
15 Delsett, Lene Liebe; Pyenson, Nicholas; Miedema, Feiko; Hammer, Øyvind.
The hyoid arch and feeding in two fish-shaped marine tetrapods. 19th annual conference of EAVP; 2022-06-27 - 2022-07-01
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16 Zuchuat, Valentin; Augland, Lars Eivind; Jones, Morgan Thomas; Sleveland, Arve R.N.; Twitchett, Richard; Tovar, Francisco J Rodríguez; Hammer, Øyvind; Senger, Kim; Betlem, Peter; Turner, Holly E; Midtkandal, Ivar; Svensen, Henrik Hovland; Planke, Sverre.
The Permian-Triassic boundary across the Barents Shelf: an intricate record of climate change, mass extinction, recovery, and basin reorganisation. EGU General Assembly 2022
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2021
17 Zuchuat, Valentin; Augland, Lars Eivind; Jones, Morgan Thomas; Twitchett, Richard; Rodríguez-Tovar, Francisco J.; Hammer, Øyvind; Senger, Kim; Betlem, Peter; Turner, Holly; Svensen, Henrik; Planke, Sverre.
Facies changes, volcanism, and mass extinction conundrum: the Permian-Triassic boundary across the Barents Sea Shelf. 35th IAS International Meeting of Sedimentology; 2021-06-21 - 2021-06-25
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18 Collignon, Marine; Cardellini, Carlo; Duprat-Oualid, S.; Hammer, Øyvind; Chiodini, Giovanni; Vandemeulebrouck, Jean; Gonzalez-Vidal, Diego; Espinoza, Alberto; Tassara, Andrés; Ruch, Joel.
Carbon dioxide diffuse emission at the Tolhuaca hydrothermal system (Chile) controlled by tectonics and topography. Journal of Volcanology and Geothermal Research 2021 ;Volum 417. s. 1-17
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19 Hjalmarsdottir, Hanna Rosa; Hammer, Øyvind; Nagy, Jenø; Grundvåg, Sten-Andreas.
Foraminiferal stratigraphy and palaeoenvironment of a storm-influenced marine shelf: upper Aptian – lower Albian, Svalbard, Arctic Norway. Cretaceous research (Print) 2021 ;Volum 130.
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20 Mattsson, Tobias; Petri, Benoît; Almqvist, Bjarne S.G.; McCarthy, William; Burchardt, Steffi; Palma, Octavio; Hammer, Øyvind; Galland, Olivier.
Decrypting Magnetic Fabrics (AMS, AARM, AIRM) Through the Analysis of Mineral Shape Fabrics and Distribution Anisotropy. Journal of Geophysical Research (JGR): Solid Earth 2021 ;Volum 126.(6) s. -
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21 Park, Juni; Stein, Holly J.; Hannah, Judith L.; Georgiev, Svetoslav; Yang, Gang; Hammer, Øyvind; Olaussen, Snorre.
Re-Os geochronology of black shale from Central Spitsbergen, Svalbard: a stepping stone toward establishing the age of the J/K boundary.. Norwegian Geological Winter Meeting,; 2021-01-06 - 2021-01-08
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22 Rodríguez-Tovar, F.J.; Dorador, J.; Zuchuat, Valentin; Planke, Sverre; Hammer, Øyvind.
Response of macrobenthic trace maker community to the end-Permian mass extinction in Central Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology 2021 ;Volum 581. s. -
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2020
23 Engelschiøn, Victoria Sjøholt; Hammer, Øyvind; Hurum, Jørn Harald; Bernhardsen, Sofie; Wesenlund, Fredrik; Roberts, Aubrey Jane; Mørk, Atle.
Large-scale lateral trends in palaeoenvironment and oxygenation in the Middle Triassic Botneheia Fm. on Svalbard. Nordic Geological Winter Meeting 2020; 2020-01-08 - 2020-01-10
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24 Engelschiøn, Victoria Sjøholt; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Mørk, Atle.
East-west depositional trends and fossil preservation in the Middle Triassic Botneheia Fm. on Svalbard. ARCEx Annual Conference 2020; 2020-10-19 - 2020-10-22
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25 Hammer, Øyvind; Jørgensen, Marte Holten.
Flora Norvegica Radiographica - Norske planter i røntgen. Spartacus 2020 (ISBN 9788243012707) 274 s.
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26 Hammer, Øyvind; Jørgensen, Marte Holten.
Planter i røntgen. Biolog 2020 ;Volum 2. s. 25-28
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27 Hansen, Bitten Bolvig; Bucher, Hugo; Schneebeli-Hermann, Elke; Hammer, Øyvind.
The middle Smithian (Early Triassic) ammonoid Arctoceras blomstrandi: conch morphology and ornamentation in relation to stratigraphy. Papers in Palaeontology 2020 s. -
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28 Hurum, Jørn Harald; Delsett, Lene Liebe; Hammer, Øyvind; Nakrem, Hans Arne.
15 years with the Spitsbergen Mesozoic Research Group. NGF Abstracts and Proceedings of the Geological Society of Norway 2020 ;Volum 1. s. 98-98
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29 Mason, Matthew J.; Wenger, Lea M.D.; Hammer, Øyvind; Blix, Arnoldus S.
Structure and function of respiratory turbinates in phocid seals. Polar Biology 2020 ;Volum 43.(2) s. 157-173
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30 Svensen, Henrik; Hammer, Øyvind; Chevallier, Luc; Jerram, Dougal Alexander; Silkoset, Petter; Polteau, Stephane; Planke, Sverre.
Understanding thermogenic degassing in large igneous provinces: Inferences from the geological and statistical characteristics of breccia pipes in the western parts of the Karoo Basin. I: Mass extinctions, volcanism, and impacts. Geological Society of America 2020 ISBN 9780813725444. s. 67-84
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31 Zuchuat, Valentin; Sleveland, Arve; Twitchett, Richard; Svensen, Henrik; Turner, Holly; Augland, Lars Eivind; Jones, Morgan Thomas; Hammer, Øyvind; Hauksson, Bjarki; Haflidason, Haflidi; Midtkandal, Ivar; Planke, Sverre.
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology 2020 ;Volum 554. s. -
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2019
32 Ballo, Eirik Magnus Gottschalk; Augland, Lars Eivind; Hammer, Øyvind; Svensen, Henrik.
A new age model for the Ordovician (Sandbian) K-bentonites in Oslo, Norway. Palaeogeography, Palaeoclimatology, Palaeoecology 2019 ;Volum 520. s. 203-213
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33 Bjørklund, Kjell Rasmus; Kruglikova, Svetlana B.; Hammer, Øyvind.
The radiolarian fauna during the younger dryas–holocene transition in andfjorden, northern Norway. Polar Research 2019 ;Volum 38. s. -
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34 Burchardt, Steffi; Mattsson, Tobias; Palma, J Octavio; Galland, Olivier; Almqvist, Bjarne; Mair, Karen; Jerram, Dougal Alexander; Hammer, Øyvind; Sun, Yang.
Progressive Growth of the Cerro Bayo Cryptodome, Chachahuen Volcano, Argentina?Implications for Viscous Magma Emplacement. Journal of Geophysical Research (JGR): Solid Earth 2019 ;Volum 124.(8) s. 7934-7961
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35 Delsett, Lene Liebe; Druckenmiller, Patrick Scott; Hammer, Øyvind; Hryniewicz, Krzysztof; Knutsen, Espen Madsen; Koevoets, Maayke Jacqueline; Nakrem, Hans Arne; Roberts, Aubrey Jane; Hurum, Jørn Harald.
Mesozoic marine reptiles from Spitsbergen and their ecosystems. Geology Today 2019 ;Volum 35.(1) s. 20-25
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36 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hammer, Øyvind; Hurum, Jørn Harald; Mørk, Atle.
"Palaeontology of the Middle Triassic dysoxic succession of the Botneheia Fm., Svalbard".. Wintermeeting 2019; 2019-01-07 - 2019-01-09
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37 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hammer, Øyvind; Hurum, Jørn Harald; Mørk, Atle.
The geobiosphere of the Middle Triassic of Svalbard- linking biofacies to geochemistry. DEEP General Assembly 2019; 2019-03-06 - 2019-03-07
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38 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Mørk, Atle.
Anoxia and mass death – a high-resolution biofacies study of the Ladinian (Middle Triassic) Blanknuten Mb., Botneheia Fm. on Edgeøya. ARCEx Annual Conference 2019; 2019-10-22 - 2019-10-24
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39 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Roberts, Aubrey Jane; Delsett, Lene Liebe; Nakrem, Hans Arne; Mørk, Atle.
Mass death by anoxia - or an exceptional preservation interval? The Middle Triassic bivalve beds of Svalbard.. Palaeontological Association Annual Meeting 2019; 2019-12-18 - 2019-12-21
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40 Engelschiøn, Victoria Sjøholt; Hammer, Øyvind; Hurum, Jørn Harald; Wesenlund, Fredrik; Bernhardsen, Sofie; Mørk, Atle.
East-west trends in palaeoenvironment and oxygenation in the Middle Triassic Botneheia Fm., Svalbard. ARCEx Annual Conference 2019; 2019-10-22 - 2019-10-24
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41 Hammer, Øyvind; Alsen, Peter; Grundvåg, Sten-Andreas; Jelby, Mads E.; Nøhr-Hansen, Henrik; Olaussen, Snorre; Senger, Kim; Sliwinska, Kasia K.; Smelror, Morten.
Comment on ‘Redox conditions, productivity, and volcanic inputduring deposition of uppermost Jurassic and Lower Cretaceousorganic-rich siltstones in Spitsbergen, Norway’ by Rakocinski et al.(2018). Cretaceous research (Print) 2019 ;Volum 96. s. 241-243
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42 Hammer, Øyvind; Jones, Morgan Thomas; Schneebeli-Hermann, Elke; Hansen, Bitten Bolvig; Bucher, Hugo.
Are Early Triassic extinction events associated with mercury anomalies? A reassessment of the Smithian/Spathian boundary extinction. Earth-Science Reviews 2019 ;Volum 195. s. 179-190
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43 Hurum, Jørn Harald; Nakrem, Hans Arne; Hammer, Øyvind; Delsett, Lene Liebe.
Gravplass i verdensformat. Geo 2019 ;Volum 22.(3) s. 12-18
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44 Jones, Morgan Thomas; Hammer, Øyvind; Bucher, Hugo; Schneebeli-Hermann, Elke; Mather, Tamsin; Svensen, Henrik; Planke, Sverre.
Are Mercury Anomalies a Reliable Proxy for LIP Volcanism? Examples from the End-Permian and Early Triassic. Goldschmidt Conference; 2019-08-18 - 2019-08-23
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45 Koevoets, Maayke Jacqueline; Hammer, Øyvind; Little, Crispin T.S..
Palaeoecology and palaeoenvironments of the Middle Jurassic to lowermost Cretaceous Agardhfjellet Formation (Bathonian–Ryazanian), Spitsbergen, Svalbard. Norwegian Journal of Geology 2019 ;Volum 99.(1) s. 17-40
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46 Markussen, Ørjan; Dypvik, Henning; Hammer, Erik; Long-Sanouiller, Haili; Hammer, Øyvind.
3D characterization of porosity and authigenic cementation in Triassic conglomerates/arenites in the Edvard Grieg Field using 3D micro-CT imaging. Marine and Petroleum Geology 2019 ;Volum 99. s. 265-281
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47 Mattsson, Tobias; Burchardt, Steffi; Palma, Octavio; Galland, Olivier; Almqvist, Bjarne S.G.; Hammer, Øyvind; Mair, Karen; Sun, Yang; Jerram, Dougal Alexander.
Magmatic fabrics related to different growth stages of the Cerro Bayo Cryptodome. LASI VI; 2019-11-25 - 2019-11-29
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48 Sucheras-Marx, Baptiste; Escarguel, Gilles; Ferreira, J; Hammer, Øyvind.
Statistical confidence intervals for relative abundances and abundance-based ratios: Simple practical solutions for an old overlooked question. Marine Micropaleontology 2019 ;Volum 151.
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2018
49 Gyøry, Emil; Hammer, Øyvind; Jorde, Knut; Nakrem, Hans Arne; Swajda, Michaël; Domeier, Mathew.
The origin of telemarkites from the mesoproterozoic of telemark, Norway. Norwegian Journal of Geology 2018 ;Volum 98.(1) s. 25-39
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50 Hansen, Bitten Bolvig; Hammer, Øyvind; Nakrem, Hans Arne.
Stratigraphy and age of the Grippia niveau bonebed, Lower Triassic Vikinghøgda Formation, Spitsbergen. Norwegian Journal of Geology 2018 ;Volum 98.(2) s. 175-187
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