Table 1.

Results of palaeobiogeographical analyses. (The recovered topology of the OACs are detailed in parenthetical notation for each time slice. SSf refers to the frequency of sympatric splitting events over the total of cladogenetic events present in the taxon cladogram. PltCI is the consistency index of the character ‘palaeolatitude’ optimized on the OACs.)

time slice	optimal area cladogram topology	SSf	PltCI	p-value
Middle Triassic	((IS,SM),(AF,(AS,(EU,(NA,IN)))))	0.82	0.684	0.0419
Ischigualastian	(NA,((IN,EU),(SM,IS)))	0.76	1.000	0.0266
Coloradian	(NA,(EU,((IN,SM),(AF,IS))))	0.80	0.692	0.0123