INFOGRAPHIC 16.1: FOSSILS FORM ONLY IN CERTAIN CIRCUMSTANCES
Not every organism that dies forms a fossil. Organisms are more likely to fossilize if they have bony skeletons or hard shells. In addition, the organism must be covered quickly upon death or create an imprint in special types of sediment. Therefore, the fossil record is not a complete record of past life, but it has supplied an impressive body of evidence for evolution.
Not every organism that dies forms a fossil. Organisms are more likely to fossilize if they have bony skeletons or hard shells. In addition, the organism must be covered quickly upon death or create an imprint in special types of sediment. Therefore, the fossil record is not a complete record of past life, but it has supplied an impressive body of evidence for evolution.
