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The present revolution in the field of genomies was made possible in large part by advances in computer science and bioinformatics.This revolution has been applied to diatom systematics with great success.Millions to billions of DNA sequences can be generated both cheaply and quickly.In contrast, phenomic data collection has remained prohibitively slow.Phenomic characters represent a rich source of data on biodiversity,and they enable scientists to reconstruct the evolutionary history oftaxa, such as fossils.