Types of Preservation
Four different preservational modes are known:
- Flinders-style: Such as found in Ediacara, the fossils are preserved on the underside of usually coarse grained sandstone beds;
- Conception-style: The fossils are preserved as an impression in an overlying bed of freshly fallen volcanic ash, often in exquisitely fine detail;
- Nama-style: Fossils are preserved in three dimensions, within fine-grained beds that were deposited in single storm or mudflow events;
- Fermeuse-style: Known from deep water only. Only trace fossils and imprints of holdfast structures are preserved; the soft tissue itself has decayed (although the sediment within the holdfasts remains).
Read more about this topic: Ediacaran Type Preservation
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