Editing Taphonomy (section)

===Physical attributes of the organism itself===
This perhaps represents the biggest source of bias in the fossil record. First and foremost, organisms that [[biomineralization|contain hard parts]] have a far greater chance of being represented in the fossil record than organisms consisting of soft tissue only. As a result, animals with bones or shells are overrepresented in the fossil record, and many plants are only represented by [[pollen]] or [[spore]]s that have hard walls. Soft-bodied organisms may form 30% to 100% of the biota, but most fossil assemblages preserve none of this unseen diversity, which may exclude groups such as [[fungi]] and entire animal [[phylum|phyla]] from the fossil record. Many animals that [[moult]], on the other hand, are overrepresented, as one animal may leave multiple fossils due to its discarded body parts. Among plants, [[Anemophily|wind-pollinated]] species produce so much more pollen than [[Zoophily|animal-pollinated]] species, the former being overrepresented relative to the latter.{{citation needed|date=April 2021}}