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Regularly spaced, small conical stromatolites in the rock record
| Sample | Spacing (cm) | Age (Gya) | Reference |
| Gindalbie | 1–2 | 2.8–2.7 | (14) |
| Belingwe | 1–2 | 2.7 | (5) |
| Hurwitz | 0.5–1 | 2.1 | (15) |
| Rocknest | 1 | 1.89 | (16) |
| Pethei | 3 | 1.88 | (17) |
| Pethei | 0.3 | 1.88 | (18) |
| Mistassini | 0.5–1 | 1.7 | (19) |
| Satka | 1 | 1.6 | (20) |
| Tokaanu, New Zealand | 1 | 0 | (10) |
| YNP, United States | 1 | 0 | (21) |
| Baja California, Mexico | 1 | 0 | (11) |
