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I am interested in the palaeobiology and palaeoecology of Permo-Triassic therapsids, particularly those associated with the Permo-Triassic mass extinction. One of my special interests is palaeohistology, the study of fossilized bone tissue. This technique aids my Permo-Triassic research by providing novel information about the biology of the vertebrates that lived before and after the Permo-Triassic mass extinction.