Table 2.

Sensitivity of afrotherian interordinal phylogeny to alternative placements of the placental root, taxon deletion, and taxon addition

Hypothesis		Afrotherian interordinal phylogeny
Exafroplacentalia	OS	(Macroscelidea, (Afrosoricida, (Tubulidentata, (Proboscidea, (Hyracoidea, Sirenia)))))
	U	(Macroscelidea, (Afrosoricida, (Tubulidentata, (Hyracoidea, (Proboscidea, Sirenia)))))*
Atlantogenata	OS	((Tubulidentata, (Macroscelidea, Afrosoricida)), (Proboscidea, (Hyracoidea, Sirenia)))
	U	no change
Deleted taxon
Arsinoitherium	OS	(Afrosoricida, ((Macroscelidea, Tubulidentata), (Sirenia, (Hyracoidea, Proboscidea))))
	U	(Afrosoricida, ((Macroscelidea, Tubulidentata), (Sirenia, (Hyracoidea, Proboscidea))))
Chambius	OS	no change
	U	no change
Herodotius	OS	no change
	U	no change*
Microhyrax	OS	no change
	U	no change
Phosphatherium	OS	no change
	U	no change
Prorastomus	OS	no change
	U	no change*
Seggeurius	OS	no change
	U	no change
Added taxon		Sister taxon	Afrotherian interordinal phylogeny
Kelba	OS	Tubulidentata	no change
	U	Tubulidentata	no change
Widanelfarasia	OS	within Tenrecoidea	no change
	U	within Tenrecoidea	no change
Kelba +
Widanelfarasia	OS	no change	no change
	U	no change	no change

Interordinal relationships within Afrotheria from (above) analyses constrained to agree with the alternative hypotheses Exafroplacentalia (Afrotheria, (Boreoeutheria, Xenarthra)) and Atlantogenata (Boreoeutheria, (Afrotheria, Xenarthra)), and (below) analyses run following deletion or addition of various extinct taxa. Results followed by an asterisk are those that occur in the Adams consensus of all equally parsimonious trees (the strict consensus of which was less resolved than the optimal topologies based on analyses including all taxa). OS = ordered and scaled analysis; U = unordered analysis.