| This lower interval has already been analysed for pollen, diatoms, ostracods, and gastropods. |
| In general, diatoms and chlorophytes had much higher biovolume than cyanobacteria and chrysophytes. |
| Among the diatoms, there was a greater loss of pennate than centric diatoms. |
| Both articulated and broken pennate diatoms, up to 12 m long and 4 m wide, are scattered throughout the stromatolitic sinters. |
| To begin with, when at a length of only 7 mm, young chub feed primarily on microscopic algae and diatoms. |
| As bacteria break down the diatoms in these dead zones, hydrogen sulfide gas is generated as a byproduct. |
