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1 Tree was published in this study

Evolution of the diatoms (Bacillariophyta). IV. A reconstruction of their age from small subunit rRNA coding regions and the fossil record.
Kooistra and Medlin. (1996). Mol Phylogenet Evol.
Thalassiosirophycidae Ditylum Fragilariophycidae Bacillariophycidae Pelagophyceae
0 30 60 90 120 138 Time (MYA)
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