Robuta

https://www.usgs.gov/publications/paleoceanography-gulf-alaska-during-past-15000-years-results-diatoms-silicoflagellates
High-resolution records of diatoms, silicoflagellates, and geochemistry covering the past 15,000 years were studied in three cores from the Gulf of Alaska...
the gulfpaleoceanographyalaskapast
https://www.usgs.gov/publications/miocene-non-marine-diatoms-western-cordillera-basins-northern-peru
Diatom assemblages are documented from diatomite layers of two Miocene fluvio-lacustrine units from the basins of the western Cordillera of northern Peru: the...
from thewestern cordilleramiocenenonmarine
https://www.nsf.gov/news/scientists-discover-new-unusual-species-diatoms
Scientists have discovered two new and unusual species of diatoms in the waters off Hawaii, they report in Nature Communications. The U.S. National Science...
discover newscientistsunusualspeciesdiatoms