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Surface area, volume and surface area-to-volume ratios for digital models of Arkarua, Cambraster and Stromatocystites.
| Model | Surface area (mm2) | Volume (mm3) | Surface area-to-volume ratio (mm−1) |
|---|---|---|---|
| Arkarua morphotype 1 | 65.89 | 31.45 | 2.10 |
| Arkarua morphotype 2 | 110.12 | 44.46 | 2.48 |
| Cambraster | 272.96 | 223.40 | 1.22 |
| Stromatocystites | 390.04 | 642.25 | 0.61 |
