Vieira, ManuelJolley, DavidZetter, ReinhardMahdi, SalihGrímsson, Friðgeir2025-09-182025-05Vieira, M, Jolley, D, Zetter, R, Mahdi, S & Grímsson, F 2025, 'Enhancing dinoflagellate cyst classification through combined LM and SEM analysis : A reassessment of Spiniferites magnificus and Fibradinium annetorpense', Review of Palaeobotany and Palynology, vol. 336, 105300. https://doi.org/10.1016/j.revpalbo.2025.1053000034-6667ORCID: /0000-0003-0909-2952/work/181279565https://hdl.handle.net/2164/26042Acknowledgements Electron Microscopy was performed in the ACEMAC (Aberdeen Centre for Electron Microscopy, Analysis and Characterization) Facility at the University of Aberdeen. The authors would like to thank to John Still for the support with the SEM work. Many thanks also to the reviewers for their constructive comments and suggestions for improvement.1212019070engDinoflagellate cystsLight microscopyMorphologyScanning electron microscopyTaxonomic resolutionQH Natural historyQE GeologyEcology, Evolution, Behavior and SystematicsPalaeontologySupplementary DataDASSupplementary InformationQHQEJournal article10.1016/j.revpalbo.2025.105300http://www.scopus.com/inward/record.url?scp=85217971356&partnerID=8YFLogxK336