Diatoms -LRB- MISC@1 : -LRB- dia -RRB- = `` through '' + -LRB- temnein -RRB- = `` to cut '' , i.e. , `` cut in half '' -RRB- are a major group of eukaryotic algae , and are one of the most common types of phytoplankton .

Diatoms -LRB- MISC@1 : -LRB- dia -RRB- = `` through '' + -LRB- temnein -RRB- = `` to cut '' , i.e. , `` cut in half '' -RRB- are a big group of eukaryotic algae .
