Table 1

Estimates of species' lifespan from origination to extinction

Taxon

Species' average lifespan (my)


All invertebrates

11


Marine invertebrates

5-10


Marine animals

4


Marine animals

5


All fossil groups

0.5-5


Mammals

1


Cenozoic mammals

1-2


Diatoms

8


Dinoflagellates

13


Planktonic foraminifera

7


Cenozoic bivalves

10


Echinoderms

6


Silurian graphtolites

2


May BMC Biology 2012 10:106   doi:10.1186/1741-7007-10-106

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