Fossils made up of soft (organic) tissue without hard body parts (such as shells, bones or teeth) whereby the tissue itself becomes preserved. The tissue usually consists of complex polysaccharide molecules such as chitin or soropollenin.
Fossils made up of soft (organic) tissue without hard body parts (such as shells, bones or teeth) whereby the tissue itself becomes preserved. The tissue usually consists of complex polysaccharide molecules such as chitin or soropollenin.