Table 2.

Taxonomic distribution of analyzed fossil sequences

Taxonomic category	No. of sequences	N
Planktonic microfossils
Foraminifera	23 (8, 6)	48
Radiolaria	9 (3, 1)	9
Conodonts	9 (1, 1)	6
Benthic microfossils
Foraminifera	37 (5, 4)	19
Ostracodes	60 (12, 3)	7
Macrofossils
Mollusks	70 (10, 6)	10
Mammals	40 (11, 7)	7
Teleost fish	2 (2, 2)	17.5
Trilobites	1 (1, 1)	22

The second column indicates how many sequences were analyzed in each taxonomic category, followed in parentheses by the number of different lineages and studies, respectively, represented. N is the median number of sampling horizons per sequence for each taxon.