René Hoffmann: Publications

Journal articles and books

2024
Poschmann, M.J., Hegna, T.A., Emrich, O., Fischer, J., Hoffmann, R., Schindler, T., Voigt, S. (2024) Putative branchiopod and vertebrate eggs from the Remigiusberg Lagerstätte (Pennsylvanian-Permian boundary) of the Saar-Nahe Basin, SW Germany. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.
| doi.org/10.1127/njgpa/2024/1221 |

Zhang, Y.-F., Mueller, M., Hoffmann, R., Riechelmann, S., Chakraborty, S., Kaczmarek, S.E., Beyer, C., Immenhauser, A. (2024) Towards an improved understanding of Ca–Mg carbonates with nonplanar surfaces: An experimental approach. Sedimentology.
| doi.org/10.1111/sed.13228 |

Uwakwe, O.C., Riechelmann, S., Hoffmann, R., Spötl, C., Jantschke, A., Hansen, M., Immenhauser, A. (2024) Experimental precipitation of cryogenic carbonate. Chemical Geology 635 (2023) 121615.
| doi.org/10.1016/j.chemgeo.2023.121615 |

Klug, C., Schweigert, G., Hoffmann, R., Fuchs, R., Pohle, A., Weis, R., De Baets, K. (2024) Anatomy and size of Megateuthis, the largest belemnite. Swiss Journal of Palaeontology.
| doi.org/10.1186/s13358-024-00320-x |

Poschmann, M.J., Hegna, T.A. Astrop, T.I., Hoffmann, R. (2024) Revision of Lower Devonian clam shrimp (Branchiopoda, Diplostraca) from the Rhenish Massif (Eifel, SW‐Germany), and the early colonization of non‐marine palaeoenvironments. Palaeobiodiversity and Palaeoenvironments.
| doi.org/10.1007/s12549-023-00597-9 |

2023
Eichinger, S., Boch, R., Baldermann, A., Goetschl, K., Wenighofer, R., Hoffmann, R., Stamm, F., Hippler, D., Grengg, C., Immenhauser, A., Dietzel, M. (2023) Unravelling calcite-to-aragonite evolution from a subsurface fluid - Formation pathway, interfacial reactions and nucleation effects. Chemical Geology, 641, 121768.
| doi.org/10.1016/j.chemgeo.2023.121768 |

Hoffmann, R., Kalbe, J., Schneider, S. (2023) Fundbericht: Arcuatichnus wimani - ein echter unterkambrischer Riese aus der Sammlung Thiede/Parchim. Geschiebekunde aktuell, 39(4), 106-108.
|ISSN 0178-1731|

Klug, C., Stevens, K., Hoffmann, R., Zatoń, M., Clements, T., Košťák, M., Weis, R., De Baets, K., Lehman, J., Vinther, J., Fuchs, D. (2023) Revisiting the identification of Syllipsimopodi bideni and timing of the decabrachian-octobrachian divergence. Nature Communications, 8094.
| doi.org/10.1038/s41467-023-42842-x |

Wang, T., Hoffmann, R., He, S., Zhang, Q., Li, G., Randrianaly, H.N., Xie, J., Yue, Y., Ding, L. (2023) Early Cretaceous climate for the southern Tethyan Ocean: insights from the geochemical and paleoecological analyses of extinct cephalopods. Global and Planetary Change 229: 104220, 16pp.
| doi.org/10.1016/j.gloplacha.2023.104220 |

Klug, C., Hoffmann, R., Tischlinger, H., Fuchs, D., Pohle, A., Rowe, A., Rouget, I., Kruta, I. (2023) 'Arm brains' (axial nerves) of Jurassic coleoids and the evolution of coleoid neuroanatomy. Swiss Journal of Palaeontology 142, 22.
| doi.org/10.1186/s13358-023-00285-3 |

Mono, P., Hoffmann, R., Wisshak, M., Lokier, S.W., Pederson, C.L., Hennhoefer, D., Diaz, M.R., Swart, P.K., Nehrke, G., Immenhauser, A. (2023) Microborings reveal alternating agitation, resting and sleeping stages of modern marine ooids. Sedimentology.
| doi.org/10.1111/sed.13149 |

Morón-Alfonso, D.A., Cichowolski, M., Hoffmann, R., Korn, D., Vennari, V.V., Allaire, N. (2023) The intriguing shapes of the ammonoid whorl. Palaeontologia Electronica 26(1):a14.
| doi.org/10.26879/1263 |

Stevens, K., Pohle, A., Hoffmann, R., Immenhauser, A. (2023) Bayesian inference reveals a complex evolutionary history of belemnites. Palaeontologia Electronica 26(1):a13.
| doi.org/10.26879/1239 |

Whicher,J.T., Chandler, R.B., Hoffmann, R. (2023) Lytoceratid ammonites from the Inferior Oolite Formation (Middle Jurassic, Aalenian and Bajocian) of Dorset (United Kingdom). Proceedings of the Geologists' Association.
| doi.org/10.1016/j.pgeola.2023.03.001 |

Morón-Alfonso,D.A., Hoffmann, R., Cichowolski, M., Rodriguez, M.G. (2023): Discovery of ammonoid jaw apparatus and associated features using reflectance transformation imaging (RTI). Publicación Electrónica de la Asociación Paleontológica Argentina 23 (1),34-48.
| doi.org/10.5710/PEAPA.28.12.2022.430 |

2022
Haye, T., Rudolph, F., Hoffmann, R. (2022): Cruziana rusoformis aus einem unterkambrischen Geschiebe von Heiligenhafen, Ostholstein (Cruziana rusoformis, in a lower Cambrian glacial erratic from Heiligenhafen, Ostholstein). Geschiebekunde aktuell 38 (3),93-97.

Immenhauser, A., Hoffmann, R., Riechelmann, S., Mueller, M., Scholz, D., Voigt, S., Niggemann, S., Buhl, D., Dornseif, M., Platte, A. (2022): Petrographic and geochemical constraints on the formation of gravity-defying speleothems. The Depositional Record 00,1-24
| doi.org/10.1002/dep2.199 |

Hoffmann, R., Howarth, M.K., Fuchs, D., Klug, C., Korn, D. (2022): The higher taxonomic nomenclature of Devonian to Cretaceous ammonoids and Jurassic to Cretaceous ammonites including their authorship and publication. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 305/2,187-197
| doi.org/10.1127/njgpa/2022/1085 |

Hoffmann, R., (2022): Speiballen aus spätjurassischen Plattenkalkablagerungen und ihre möglichen Erzeuger. Der Steinkern 48(1), 46-53.

Stritzke, R., Pint, A., Zeenden, C., Rolf, C., Frenzel, P., Hahne, J., Hoffmann, R., Schneider, C., Hambloch, C., Schrijver, D. (2022): Niederschönhagen, Detmold, Germany: a 170 m long early Quaternary lake record from a subrosion structure. Quaternary Newsletter 155, 42-51.

2021
Hoffmann, R. (2021): Commentary: Ghost in the shell. PNAS 118(51),e2118894118.
| doi.org/10.1073/pnas.2118894118 |

Hoffmann, R., Linzmeier, B.J., Kitajima, K., Nehrke, G., Dietzel, M., Joens, N., Stevens, K., Immenhauser, A. (2021): Complex biomineralization pathways of the belemnite rostrum cause biased paleotemperature estimates. Minerals 11,1406
| doi.org/10.3390/min11121406 |

Fuchs, D., Hoffmann, R.,Evolutionary development of the cephalopod arm armature: a review . Swiss Journal of Palaeontology 140, 27.
| doi.org/10.1186/s13358-021-00241-z |

Hoffmann, R., Stevens, K., Härer, J., Juárez-Ruiz, J., Klug, C., Schweigert, C. (2021): Fressen und gefressen werden: Über die Lebensweise von Ammoniten (Geofokus). Gmit 85, 8-20.

Morón-Alfonso, D.A., Hoffmann, R., Cichowolski, M. (2021): Geometric morphometrics in ammonoids based on virtual modelling. Palaeontologia Electronica 24(3): a29.
| https://doi.org/10.26879/1157 |

Klug, C., Pohle, A., Roth, R., Hoffmann, R., Wani, R., Tajika, A. (2021): Preservation of nautilid soft parts inside and outside the conch interpreted as central nervous system, eyes, and renal concrements from the Lebanese Cenomanian. Swiss Journal of Palaeontology 140, 15.
| https://doi.org/10.1186/s13358-021-00229-9 |

Hoffmann, R., Riechelmann, S., Liebetrau, V., Eisenhauer, A., Immenhauser, A. (2021): Calcium isotope values of modern and fossil cephalopod shells – Trophic level or proxy for seawater geochemistry? Chemical Geology 583, 120466.
| https://doi.org/10.1016/jchemgeo.2021.120466 |

Weinkauf, M.F.G., Hoffmann, R., Wiedenroth, K. (2021): Evolutionary-phylogenetic pathway of the Cretaceous ammonite genus Aegocrioceras and its relationship to Juddiceras spp. and Crioceratites spp.. Papers in Palaeontology 7(4), 2113-2139.
| https://doi.org/10.1002/spp2.1397 |

De Baets, K., Hoffmann, R. , Mironenko, A. (2021): Chapter 7 – Evolutionary history of cephalopod pathologies linked with parasitism. Marine and Petroleum Geology 132, 203-249.
| https://doi.org/10.1007/978-3-030-52233-9_7 |

Wang, H., Shi, K., Ma, Y., Liu, B., Song, X., Ge, Y., Liu, H., Hoffmann, R. , Immenhauser, A. (2021): Control of depositional and diagenetic processes on the reservoir properties of the Mishrif Formation in the AD oilfield, Central Mesopotamian Basin, Iraq. De Baets, K., Huntley, J.W. (eds.), The Evolution and Fossil Record of Parasitism; Topics in Geobiology 50, 203-249.
| https://doi.org/10.1016/j.marpetgeo.2021.105202/ |

Hoffmann, R., Morón-Alfonso, A., Klug, C., Tanabe, K. (2021): Ammonoid soft tissue remains revealed by computed tomography. Swiss Journal of Palaeontology 140, 11.
| doi.org/10.1186/s13358-021-00226-y |

Klug, C., Schweigert, G., Hoffmann, R., Weis, R., De Baets, K. (2021): Fossilized leftover falls as sources of palaeoecological data: a "pabulite" comprising a crustacean, a belemnite and a vertebrate from the Early Jurassic Posidonia Shale. Swiss Journal of Palaeontology 140(1), 1-12.
| doi.org/10.1186/s13358-021-00225-z | Hoffmann, R. (2020): Virtuelle Paläontologie - ein neuer Forschungszweig und sein Einfluss auf die Paläontologie, erklärt am Beispiel von Ammoniten, 2. Teil. Der Steinkern 43, 38-44.

Hoffmann, R., Weinkauf, M.F.G., Fuchs, D., Lukeneder, A. (2021): Is there more than one species in the genus Spirula (Cephalopoda: Decabrachia): evidence for an Atlantic-Pacific divide. Journal of Molluscan Studies 87(1).
| https://doi.org/10.1093/mollus/eyab001 |

Klug, C. Silvestro, G. di, Hoffmann, R., Schweigert, G., Fuchs, D., Clements, T., Gueriau, P. (2021): Taphonomic patterns mimic biologic structures: diagenetic Liesegang rings in Mesozoic coleoids and coprolites. PeerJ 9:e10703.
| https://doi.org/110.7717/peerj.10703 |

Hoffmann, R., Slattery, J.S., Kruta, I., Linzmeier, B.J., Lemanis, R.E., Mironenko, A., Goolaerts, S., De Baets, K., Peterman, D.J., Klug, C. (2021): Recent advances in heteromorph ammonoid palaeobiology. Biological Reviews 96(2), 576-610.
| https://doi.org/10.1111/brv.12669 |

Knaust, D., Hoffmann, R. (2021): Response to comment on: The ichnogenus Lumbricaria Münster from the Upper Jurassic of Germany interpreted as faecal strings of ammonites. Papers in Palaeontology 7(4), 2283-2284.


Knaust, D., Hoffmann, R. (2021): The ichnogenus Lumbricaria Münster from the Upper Jurassic of Germany interpreted as faecal strings of ammonites. Papers in Palaeontology 7(2), 807-823.
| https://doi.org/10.1002/spp2.1311 |

2020
Morón-Alfonso, D.A., Peterman, D.J., Cichowolski, M., Hoffmann, R., Lemanis, R.E. (2020): Virtual 3D modeling of the ammonoid conch to study its hydrostatic properties. Acta Palaeontologica Polonica 65(3), 467-480.
| https://doi.org/10.4202/app.00776.2020/ |

Klug, C., Etter, W., Hoffmann, R., Fuchs, D., De Baets, K. (2020): Jaws of a large belemnite and an ammonite from the Aalenian (Middle Jurassic) of Switzerland. Swiss Journal of Palaeontology 139(7), 11p..
| https://doi.org/10.1186/ |

Keupp, H., Hoffmann, R., Fuchs, D. (2020): Part M, Chapter 20: Pathology of Fossil and Extant Coleoid Shells. Treatise Online 135, 1-16.

Hoffmann, R., Kalbe, J. (2020): Sedimentärgeschiebe des Jahres 2020 – Paradoxissimus-Siltstein. Geschiebekunde aktuell 36(3), 85-87.

Ge, Y., Lokier, S.W., Hoffmann, R., Pederson, C.L., Neuser, R.D., Immenhauser, A. (2020): Composite micrite envelopes in the lagoon of Abu Dhabi and their application for the recognition of ancient firm- to hardgrounds. Marine Geology 423.
| https://doi.org/10.1016/j.margeo.2020.106141 |

Hoffmann, R., Stevens, K. (2020): The palaeobiology of belemnites - foundation for the interpretation of rostrum geochemistry. Biological Reviews 95, 94-123.
| https://doi.org/10.1111/brv.12557 |

Stevens, K., Hoffmann, R., Picollier, M.C., Mutterlose, J. (2020): Pearl formation in an Early Cretaceous belemnite. PalZ 94, 481-486.
| https://doi.org/10.1007/s12542-020-00521-y |

Oudot, M., Neige, P., Shir, I.B., Schmidt, A., Strugnell, J.M., Plasseraud, L., Broussard, C., Hoffmann, R., Lukeneder, A., Marin, F. (2020): The shell matrix and microstructure of the Ram's Horn squid: Molecular and structural characterization. Journal of Structural Biology 211(1), 1-28.
| https://doi.org/10.1016/j.jsb.2020.107507 |

Hoffmann, R., Bitner, M.A., Pisera, A., Jäger, M., Auer, G., Giraldo-Gómez, V., Koci, T., Buckeridge, J., Mueller, M., Stevens, K., Schneider, S. (2020): Late Miocene biota from the Abad Member of the Carboneras-Nijar Basin (Spain, Andalusia): A bathyal fossil assemblage pre-dating the Messinian salinity crisis. Geobios 59, 1-28.
| https://doi.org/10.1016/j.geobios.2020.03.002 |

Hoffmann, R., Stevens, K., Picollier, M.-C., Mutterlose, J., Klug, C. (2020): Non-destructive analysis of pathological belemnite rostra by micro-CT techniques. Acta Palaeontologica Polonica 65(1), 11-27.
| https://doi.org/10.4202/app.00689.2019 |

Tajika, A., Landman, N.H., Hoffmann, R., Lemanis, R., Morimoto, N., Ifrim, C., Klug. C. (2020): Chamber volume development, metabolic rates, and selective extinction in cephalopods. Scientific Reports 10, 2950.
| https://doi.org/10.1038/s41598-020-59748-z |

Hoffmann, R., Bestwick, J., Berndt, G., Berndt, R., Fuchs, D., Klug, C. (2020): Pterosaurs ate soft-bodied cephalopods (Coleoidea). Scientific Reports 10, 1230.
| https://doi.org/10.1038/s41598-020-57731-2 |

Hoffmann, R. (2020): Virtuelle Paläontologie - ein neuer Forschungszweig und sein Einfluss auf die Paläontologie, erklärt am Beispiel von Ammoniten, 1. Teil. Der Steinkern 40, 56-66.

Hoffmann, R., Stevens, K., Keupp, H., Simonsen, S., Schweigert, G. (2020): Regurgitalites - a window into the trophic ecology of fossil cephalopods. Journal of the Geological Society 177(1), 82-102.
| https://doi.org/10.1144/jgs2019-117 |

2019
Hoffmann, R., Mironenko, A., Keupp, H. (2019): Conellae, enigmatic structures on cephalopod shells - shapes, distribution, and formation. Acta Palaeontologica Polonica 64(4), 815-830.
| https://doi.org/10.4202/app.00640.2019 |

Klug, C., Landman, N.H., Fuchs, D., Mapes, R.H., Pohle, A., Guériau, P., Reguer, S., Hoffmann, R. (2019): Anatomy and evolution of the first Coleoidea in the Carboniferous. Nature Communications Biology 2, 280.
| https://doi.org/10.1038/s42003-019-0523-2 |

Hoffmann, R., Riechelmann, S., Ritterbush, K.A., Koelen, J., Lübke, N., Joachimski, M.M., Lehmann, J., Immenhauser, A. (2019): A novel multiproxy approach to reconstruct the paleoecology of extinct cephalopods. Gondwana Research 67, 64-81.
| https://doi.org/10.1016/j.gr.2018.10.011 |

Hoffmann, R., Weinkauf, M.F.G., Wiedenroth, K., Goeddertz, P., De Baets, K. (2019): Morphological disparity and ontogeny of the endemic heteromorph ammonite genus Aegocrioceras (Lower Cretaceous, Hauterivian, NW-Germany). Palaeogeography, Palaeoclimatology, Palaeoecology 520, 1-17.
| https://doi.org/10.1016/j.palaeo.2019.01.020 |

2018
Hoffmann, R. (2018): Perlboote im Aquarium. DAZ 12/2018, 48-53.

Hoffmann, R., Lemanis, R.E., Wulff, L., Zachow, S., Lukeneder, A., Klug, C., Keupp, H. (2018): Traumatic events in the life of the deep-sea cephalopod mollusc, the coleoid Spirula spirula. Deep-Sea Research Part I 142, 127-144.
| https://doi.org/10.1016/j.dsr.2018.10.007 |

Klug, C., Hoffmann, R. (2018): Early Devonian actinarian trace fossils (Conichnus conicus) from the Anti-Atlas of Morocco. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 290(1-3), 65-74.

Hoffmann, R., Weißmüller, M. (2018): Ein Belemnitenrostrum mit zwei Spitzen aus dem Toarcium (Unterjura) von Dörlbach bei Altdorf. Der Steinkern 34, 38-43.

Hoffmann, R., Ansorge, J., Wesendonk, H., & Stevens, K. (2018): A Late Cretaceous pathological belemnite rostrum with evidence of infection by an endoparasite. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 287(3), 335-349.

Hoffmann, R., Maisch, M.W. (2018): Systematics and phylogenetic position of the lytoceratid ammonite genus Holcolytoceras Spath, 1924 (Cephalopoda, Ammonoidea) from the Lower Pliensbachian of Europe. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 288(2), 173-182.

Riechelmann, S., Mavromatis, V., Buhl, D., Dietzel, M., Hoffmann, R., Jöns, N., Duivestein, I.K., Immenhauser, A. (2018): Echinoid skeletal carbonate as archive of past seawater magnesium isotope signatures – Potential and limitations. Geochimica et Cosmochimica Acta 235, 333-359.
| https://doi.org/10.1016/j.gca.2018.06.008 |

Hoffmann, R., Lemanis, R., Falkenberg, J., Schneider, S., Wesendonk, H., Zachow, S. (2018): Integrating 2D and 3D shell morphology to disentangle the palaeobiology of ammonoids: a virtual approach. Palaeontology 61(1), 89-104.
| https://doi.org/10.1111/pala.12328 |

2017
Fuchs, D., Hoffmann, R. (2017): Part M, Chapter 10: Arm armature in belemnoid coleoids. Treatise Online 91: 1-20.

Maisch, M.W., Hoffmann, R. (2017): Lytoceratids (Cephalopoda, Ammonoidea) from the Lower Posidonienschiefer Formation (Tenuicostatum Zone, Early Jurassic) of Baden-Württemberg (south-western Germany). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 283(3), 275-289.

Hoffmann, R., Weinkauf, M.F.G., Fuchs, D. (2017): Grasping the shape of belemnoid arm hooks – a quantitative approach. Paleobiology 43, 304-320.
| doi:10.1017/pab.2016.44 |

2016
Lehmann, J., Hoffmann, R., Owen, H.G., Beckert, W. (2016): Cephalopoden aus unterkreidezeitlichen Geschiebe der Region um Wolgast-Hohendorf, Vorpommern. Archiv für Geschiebekunde 7(7-8), 401-532.

De Baets, K., Hoffmann, R., Sessa, J.A., Klug, C. (2016): Fossil Focus: Ammonoids. Palaeontology Online 6(1), 1-15.
| https://doi.org/10.5167/uzh-130958 |

Dunlop, J., Apanaskevich, D.A., Lehmann, J., Hoffmann, R., Fusseis, F., Ehlke, M., Zachow, S., Xiao, X. (2016): Microtomography of the Baltic amber tick Ixodes succineus reveals affinities with a modern Asian disease vector Ixodes ovatus. BMC Evolutionary Biology 16, 203.
| 10.1186/s12862-016-0777-y |

Hoffmann, R. (2016): Virtuelle Paläontologie. Scriptum Online 2, 2-19.

Lemanis, R., Zachow, S., Hoffmann, R. (2016): Comparative cephalopod shell strength and the role of septum morphology on stress distribution. PeerJ 4:e2434, 1-20.

| 10.7717/peerj.2434 |

Keupp, H., Hoffmann, R., Stevens, K., Albersdörfer, R. (2016): Key innovations in Mesozoic ammonoids: the multicuspidate radula and the calcified aptychus. Palaeontology. 59(6), 775-791.
| 10.1111/pala.12254 |

Hoffmann, R., Richter, D.K., Neuser, R.D., Jöns, N., Linzmeier, B.J., Lemanis, R.E., Fusseis, F., Xiao, X., Immenhauser, A. (2016): Evidence for a composite organic-inorganic fabric of belemnite rostra: Implications for palaeoceanography and palaeoecology. Sedimentary Geology 341, 203-215.
| https://doi.org/10.1016/j.sedgeo.2016.06.001 |

Hoffmann, R., Rudolph, F. (2016): Hohle Ammoniten aus dem Geschiebe. Der Geschiebesammler 48(4), 117-124.

Radtke, G., Hoffmann, R., Keupp, H. (2016): Form and formation of flares and parabolae based on new observations of the internal shell structure in lytoceratid and perisphinctid ammonoids. Acta Palaeontologica Polonica 61(3), 503-517 (Editors´ Choice).
| https://doi.org/10.4202/app.00154.2015 |

Immenhauser, A., Schöne, B.R., Hoffmann, R., Niedermayr, A. (2016): Mollusc and brachiopod skeletal hard parts: Intricate archives of their marine environment. Sedimentology 63, 1-59.
| https://doi.org/10.1111/sed.12231 |

Lemanis, R., Korn, D., Zachow, S., Rybacki, E., Hoffmann, R. (2016): The evolution and development of cephalopod chambers and their shape. PlosOne 11(3), e0151404.
| 10.1371/journal.pone.0151404 |

Hoffmann, R., Grimmberger, G., Bertling, R. (2016): Erhaltungspotential röhrenförmiger Spurenfossilien in unterkambrischen Sandsteinen. Geschiebekunde aktuell 32(2), 101-103.

Bodin, S., Krencker, F.-N., Kothe, T., Hoffmann, R., Mattioli, E., Heimhofer, U., Kabiri, L. (2016): Perturbation of the carbon cycle during the late Pliensbachian – early Toarcian: New insight from high-resolution carbon isotope records in Morocco. Journal of African Earth Sciences 116, 89-104.
| https://doi.org/10.1016/j.jafrearsci.2015.12.018 |

Hoffmann, R., Grimmberger, G., Knaust, D. (2016): Tubichnus angulatus – a Complex Burrow System from Erratic Boulders of Early Cambrian Age, Northeast Germany and South Sweden. Ichnos 23, 116-125.
| https://doi.org/10.1080/10420940.2015.1132214 |

2015
Klug, C., R. Hoffmann (2015): Chapter 3 – Ammonoid septa and sutures. In: Klug, C., Korn, D., De Baets, K., Kruta, I., Mapes, R.H. (eds.): Ammonoid paleobiology: from anatomy to ecology; Topics in Geobiology 43, 45-90.
| https://doi.org/10.1007/978-94-017-9630-9_3 |

Hoffmann, R., Rhebergen, F. (2015): Erstnachweis der Spurengattung Lingulichnus Hakes, 1976 aus Geschiebefund. Archiv für Geschiebekunde 7(5), 277-290.

De Baets, K., Bert, D., R. Hoffmann, Monnet, C., Yacobucci, M.M., Klug, C. (2015): Chapter 9 – Ammonoid intraspecific variability. In: Klug, C., Korn, D., De Baets, K., Kruta, I., Mapes, R.H. (eds.): Ammonoid paleobiology: from anatomy to ecology; Topics in Geobiology 43, 359-426.
| https://doi.org/10.1007/978-94-017-9630-9_9 |

R. Hoffmann, Lemanis, R., Naglik, C., Klug, C. (2015): Chapter 16 – Ammonoid buoyancy. In: Klug, C., Korn, D., De Baets, K., Kruta, I., Mapes, R.H. (eds.): Ammonoid paleobiology: from anatomy to ecology; Topics in Geobiology 43, 613-648.
| https://doi.org/10.1007/978-94-017-9630-9_16 |

R. Hoffmann, Keupp, H. (2015): Chapter 21 – Ammonoid paleopathology. In: Klug, C., Korn, D., De Baets, K., Kruta, I., Mapes, R.H. (eds.): Ammonoid paleobiology: from anatomy to ecology; Topics in Geobiology 43, 877-926.
| https://doi.org/10.1007/978-94-017-9630-9_21 |

Lamas-Rodríguez, J, Ehlke, M. R. Hoffmann, Zachow, S. (2015): GPU-accelerated denoising of large tomographic data sets with low SNR – Application for non-invasive analysis of paleontological data. ZIB-Report 15-14, 1-65.

Hoffmann, R. (2015): Part L, Revised, Volume 3B, Chapter 3: Lytoceratoidea; Part of the Revision of the Treatise on Invertebrate Paleontology Part L Mollusca 4 Cephalopoda Ammonoidea. Treatise Online 70, 1-34.

Hoffmann, R., Howarth, M.K. (2015): Takahashiceras – a new generic name proposed for Takahashia Matsumoto, 1984. Paleontological Contributions 15, 1.
| https://doi.org/10.17161/1808.18946 |

Hoffmann, R., Reinhoff, D., Lemanis, R. (2015): Non-invasive imaging techniques combined with morphometry: a case study from Spirula. Swiss Journal of Palaeontology 134, 207-216.
| https://doi.org/10.1007/s13358-015-0083-0 |

Lemanis, R., Zachow, S., Fusseis, F., Hoffmann, R. (2015): A new approach using high-resolution computed tomography to test the buoyant properties of chambered cephalopod shells. Paleobiology 41(2), 313-329.
| doi:10.1017/pab.2014.17 |

Hoffmann, R. (2015): The correct taxon name, authorship, and publication date of extant ten-armed coleoids. Paleontological Contributions 11, 1-4.
| https://doi.org/10.17161/PC.1808.16433 |

Hoffmann, R. (2015): Röntgenblick: wie lebten ausgestorbene Meerestiere? Rubin 25(1), 14-17.

2014
Ritterbush, K.A., Hoffmann, R., Lukeneder, A., De Baets, K. (2014): Pelagic palaeoecology: the importance of recent constraints on ammonoid palaeobiology and life history. Journal of Zoology 292, 229-241.
| https://doi.org/10.1111/jzo.12118 |

Hoffmann, R., Warnke, K. (2014): Spirula – das unbekannte Wesen aus der Tiefsee. Denisia 32, 33-46.

Hoffmann, R., Steidelmüller, H. (2014): Fundbericht: Syringomorpha nilssoni in Vergesellschaftung mit Monocraterion isp. Aus Gummanz (Rügen). Geschiebekunde aktuell 30(3), 74-78.

Hoffmann, R., Schultz, J.A., Schellhorn, R., Rybacki, E., Keupp, H., Gerden, S.R., Lemanis, R., Zachow, S. (2014): Non-invasive imaging methods applied to neo- and paleontological cephalopod research. Biogeosciences 11, 2721-2739.
| doi:10.5194/bgd-10-18803-2013 |

Hahn, S., Griesshaber, E., Schmahl, W. W., Neuser, R. D., Ritter, A.-C., Hoffmann, R., Buhl, D., Niedermayr, A., Geske, A., Immenhauser, A. (2014): Exploring aberrant bivalve shell ultrastructure and geochemistry as proxies for past sea water acidification. Sedimentology 61, 1625-1658.
| https://doi.org/10.1111/sed.12107 |

Krencker, F.N., Bodin, S., Hoffmann, R., Suan, G., Mattioli, E., Kabiri, L., Föllmi, K.B., Immenhauser, A. (2014): The middle Toarcian cold snap: Trigger of mass extinction and carbonate factory demise. Global and Planetary Change 117, 64-78.
| https://doi.org/10.1016/j.gloplacha.2014.03.008 |

2013
Hoffmann, R., Iba, Y., Kawabe, F., Mutterlose, J. (2013): First occurrence of Pictetia (Ammonoidea) from the Albian of Japan and its systematical implications. Bulletin of Geosciences 88(3), 517-524.

Kautz, R., Hoffmann, R. (2013): Eine ungewöhnliche Spurenvergesellschaftung von Psammichnites und Syringomorpha im unterkambrischen Hardeberga-Sandstein. Der Geschiebesammler 46(1), 11-18.

Hoffmann, R. , Grimmberger, G., Kalbe, J., Rudolph, F., Schneider, S. (2013): Verschiedene Aspekte unterkambrischer Geschiebesandsteine mit Skolithos-Röhren. Archiv für Geschiebekunde 6(7), 441-492.

Grimmberger, G., Hoffmann, R. , Kautz, R. (2013): Erstfund der Lebensspur Bichordites monastirensis in einem paläozänen Geschiebe. Geschiebekunde aktuell 29(1), 19-25.

2012
Engelhardt, G. Hoffmann, R. (2012): Zur unterkambrischen Ichnogattung Syringomorpha anhand norddeutscher Geschiebefunde I. Archiv für Geschiebekunde 6(5), 281-360.

Hoffmann, R., Kautz, R. (2012): Unterkambrische Skolithos-Säulengalerien in einem Windkanter-Geschiebe. Der Geschiebesammler 45(2): 65-72.

Hoffmann, R., Kalbe, J., Grimmberger, G., Schneider, S. (2012): Ein neuer Spreitenbau aus unterkambrischen Geschieben oder nur eine besondere Erhaltungsform von Diplocraterion? Archiv für Geschiebekunde 6(4), 217-280.


Shigeta, Y., Futakami, M., Hoffmann, R. (2012): Two new ammonoid genera of the subfamily Gabbioceratinae from the Upper Albian (Lower Cretaceous) of Hokkaido, Japan. Paleontological Research 16(3), 208-218.
| https://doi.org/10.2517/1342-8144-16.3.208 |

2011
Hoffmann, R., Grimmberger, G. (2011): Kegelförmige organische und anorganische Strukturen in unterkambrischen Sandsteingeschieben Norddeutschlands. Archiv für Geschiebekunde 6(2), 73-152.

Hoffmann, R., Rudolph, F. (2011): Zur Alterstellung des häufig im Geschiebe gefundenen "Eophyton-Sandsteins". Der Geschiebesammler 44(1), 25-38.

Hoffmann, R., Mutterlose, J. (2011): Stratigraphie und Cephalopodenfauna des Unter-Apt von Alstätte (NRW). Geologie und Paläontologie in Westfalen 80, 43-59.

Hoffmann, R. , Zachow, S. (2011): Non-invasive approach to shed new light on the buoyancy business of chambered cephalopods (Mollusca). IAMG 2011 2011, 1-11.
| https://doi.org/10.5242/iamg.2011.0163 |

2010
Hoffmann, R., Keupp, H. (2010): The Myth of the Triassic lytoceratid Ammonite Trachyphyllites Arthaber, 1927, in Reality an Early Jurasssic Analytoceras hermanni Gümbel, 1861. Acta Geologica Polonica 60(2), 219-229.

Hoffmann, R. (2010): New insights on the phylogeny of the Lytoceratoidea (Ammonitina) from the septal lobe and its functional interpretation. Revue de Paléobiologie 29(1), 1-156.

Shigeta, Y., Hoffmann, R., Izukura, M. (2010): Systematic position and origin of the Cretaceous ammonoid genus Takahashia. Paleontological Research 14 (3), 196-201.

Warnke, K., Oppelt, A., Hoffmann, R. (2010): Stable isotopes during ontogeny of Spirula and derived hatching temperatures. Ferrantia 59, 191-201.

2009
Hoffmann, R. (2009): A new Rhabdammina species (Foraminifera: Textulariina) with an unusual distribution pattern from Cretaceous (Germany) and Recent (Greece: Aegina) localities. Berliner paläobiologische Abhandlungen 10, 215-222.

Schreiber, G., Hoffmann, R. (2009): Der Septallobus als diagnostisches Merkmal für die Überfamilie Lytoceratoidea (Cephalopoda: Ammonitina). Berliner paläobiologische Abhandlungen 10, 307-310.

Klein, J., Hoffmann, R., Joly, B., Shigeta, Y., Vasicek, Z. (2009): Fossilium Catalogus I: Animalia Pars 146 Lower Cretaceous Ammonites IV Boreophylloceratoidea, Phylloceratoidea, Lytoceratoidea, Tetragonitoidea, Haploceratoidea including Upper Cretaceous representatives. Riegraf, W. (ed) Backhuys Publishers, Leiden, Margraf Publishers, Weikersheim, 1-416.

Hoffmann, R., Keupp, H., Wiese, F. (2009): The systematic position of the Lower Cretaceous heteromorphic ammonite Pictetia Uhlig, 1883. Paläontologische Zeitschrift 83, 521-531.
| https://doi.org/10.1007/s12542-009-0036-2 |

2008
Hoffmann, R., Keupp, H. (2008): Ammoniten, die man kennen muss Lytoceraten. Fossilien 2008(4), 242-249.

Hoffmann, R. , Keupp, H. (2008): A giant member of the genus Lobolytoceras Buckman, 1923 (Ammonitina, Lytoceratinae) from the Oxfordian of SW Madagascar. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 250(1), 53-64.
| 10.1127/0077-7749/2008/0250-0053 |

2007
Hoffmann, R., Keupp, H. & Gradl, H. (2007): Zur Korrelation der Lias-Tongruben von Unterstürmig und Buttenheim (Frankenalb). Jber. Mitt. Oberrhein. geol. Ver., N. F. 89, 37-48.

2005
Hoffmann, R., Stange, S. (2005): Ein problematisches Spurenfossil. Der Geschiebesammler 38(3), 131-135.