Wellman, Charles - University of Sheffield - Department of Animal and Plant Sciences

个人简介

BSc (1987) University of Southampton; PhD (1991) Cardiff University PDRA, The Natural History Museum, London (1991-1992) PDRA, Cardiff University (1994-1997) Lecturer, Senior Lecturer, Reader and Professor, University of Sheffield (1997-present)

研究领域

My research addresses the highly topical and controversial problem of the origin and early evolution of land plants. My research integrates evidence from both fossil and living plants. Fossil evidence is in the form of early land plant megafossils and dispersed microfossils—spores and fragments. I am currently working on material from China, Oman, Saudi Arabia, Scotland, Kazakhstan and Spitsbergen. I study living plants in order to interpret the earliest land plant fossils [specifically through: (i) cladistic analyses of evolutionary relationships; (ii) molecular clock analyses of evolutionary divergence times; (iii) analysis of physiological adaptations required for plants to invade the land (particularly Evo-Devo studies on the molecular genetics of spore/pollen wall development)]. I am also exploring the impact of the invasion of the land by plants on global change. This has led to research into developing a novel (and currently only) proxy for past UV-B radiation. In recent years I have also extended my research back in time to examine a previously neglected research area considering the ‘algal scum’ that inhabited the land before it was invaded by plants.

近期论文

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Slater SM & Wellman CH (2016) Middle Jurassic vegetation dynamics based on quantitative analysis of spore/pollen assemblages from the Ravenscar Group, North Yorkshire, UK. Palaeontology, 59(2), 305-328. View this article in WRRO Slater SM & Wellman CH (2016) Middle Jurassic vegetation dynamics based on quantitative analysis of spore/pollen assemblages from the Ravenscar Group, North Yorkshire, UK. Palaeontology, 59(2), 305-328. View this article in WRRO Strother PK & Wellman CH (2016) Palaeoecology of a billion-year-old non-marine cyanobacterium from the Torridon Group and Nonesuch Formation. Palaeontology, 59(1), 89-108. Raevskaya E, Dronov A, Servais T & Wellman CH (2016) Cryptospores from the Katian (Upper Ordovician) of the Tungus basin: The first evidence for early land plants from the Siberian paleocontinent. Review of Palaeobotany and Palynology, 224, 4-13. Slater SM & Wellman CH (2015) A quantitative comparison of dispersed spore/pollen and plant megafossil assemblages from a Middle Jurassic plant bed from Yorkshire, UK. Paleobiology, 41(4), 640-660. View this article in WRRO Morris JL, Leake JR, Stein WE, Berry CM, Marshall JEA, Wellman CH, Milton JA, Hillier S, Mannolini F, Quirk J & Beerling DJ (2015) Investigating Devonian trees as geo-engineers of past climates: linking palaeosols to palaeobotany and experimental geobiology. Palaeontology, 58(5), 787-801. View this article in WRRO Wellman CH & Strother PK (2015) The terrestrial biota prior to the origin of land plants (embryophytes): a review of the evidence. Palaeontology, 58(4), 601-627. Wellman CH (2015) Spore assemblages from the Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Northern Highlands of Scotland: the Berriedale Outlier. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 105(03), 227-238. Slater SM, Taylor WA, Batten DJ, Hill CR & Wellman CH (2015) Morphology and wall ultrastructure of a new and highly distinctive megaspore from the Middle Jurassic of Yorkshire, UK. Review of Palaeobotany and Palynology, 216, 33-43.