Table 1 Experimental setup.

From: Biofilms as agents of Ediacara-style fossilization

Experiment

Initial DSi (mM)

Sand (g)

Phymanthus (g)

Algae, cyanobacteria (g)

MOPS** (ml)

1

no DSi + Phymanthus

0

–

16.29

–

2

2

no DSi + Phymanthus + sand

0

50

28.08

–

2

3

DSi + sand

2

50

–

–

2

4

DSi + Fischerella + sand

2

50

–

10

2

5

DSi + Anabaena + sand

2

50

–

10

2

6

DSi + Vaucheria + sand

2

50

–

10

2

7

DSi + Spirogyra + sand

2

50

–

10

2

8

DSi + Phymanthus

2

–

15.23

–

2

9

DSi + Phymanthus + sand

2

50

12.33

–

2

10

DSi + sand + biofilm*

2

50

–

10

2

11

DSi + Phymanthus + sand + biofilm*

2

50

4.22

10

2

  1. DSi dissolved silica. Noted masses of Phymanthus are for the first run of each experiment.
  2. Biofilm refers to equal proportions of Fischerella, Anabaena, Vaucheria, and Spirogyra.
  3. **3-(N-morpholino)propanesulfonic acid.
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