Reconstructing the age and historical biogeography of the ancient flowering-plant family Hydatellaceae (Nymphaeales)

Table 1 Fossil calibrations for seed-plant phylogeny

Node	Calibration	Fossil	Age(Ma)	Priors	References
A	Crown seed plants	Cordaites	315	316.0–367.5 (2, 1)	[40, 41]
C	Stem angiosperms	Glossopterid, Gangamopteris McCoy	293.8	294.8–346.3 (2, 1)	[24, 40, 42, 43]
G	Stem Cabombaceae	Pluricarpellatia peltata B. Mohr, Bernardes-de-Oliveira & D.W. Taylor	98.7*	99.1–118.0 (1, 1)	[44, 45]
H	Crown Nymphaeaceae	Monetianthus mirus Friis, Pedersen, von Balthazar, Grimm & Crane	92.8*	93.2–112.1 (1, 1)	[46, 47]
M	Stem Trimeniaceae	Unnamed seed	98.7	98.9–110.4 (0.5, 1)	[48]
N	Stem eudicots	Tricolpate pollen	124*	124.2–135.7 (0.5, 1)	[49, 50]
O	Stem Araceae	Mayoa portugallica Friis, Pedersen & Crane	96.1*	96.5–115.4 (1, 1)	[51]
P	Stem Platanaceae	West Brothers platanoid and Sapindopsis Fontaine	92.8*	93.2–112.1 (1, 1)	[52]

‘Node’ refers to placement on phylogeny in Additional file 3. Fossil ages follow the references, except that some ages are modified following [49], indicated with an asterisk. Calibration priors are lognormal; the 95% prior interval is given, followed by the lognormal mean and standard deviation in parentheses.

ISSN: 2730-7182