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Table 3 Fossil records used for calibrating the cardiid phylogeny

From: Shedding light: a phylotranscriptomic perspective illuminates the origin of photosymbiosis in marine bivalves

Node

Taxa

Min. node age (MYA)

Source

A

Fragum fragum

3.6

[77]

B

Americardia media

7.2

[78]

C

Tridacna

23

[79]

D

Vasticardium

41.2

[80]