The diatom collection at the University of Colorado Museum of ... This is primarily freshwater, including fossil and modern samples. The collection is worldwide in scope, but has strengths in Great ...

Luckily, diatomaceous earth is a non-toxic pesticide that takes care of several common pests. The fine white powder is made out of fossils from microalgae organisms, and the granules have sharp edges ...

evolution and biogeography of freshwater diatoms. The research covers both extinct and extant taxa, and utilises both fossil and preserved material as well as living material in the form of cultured ...