Children (71 direct children, 72 direct and indirect children):
Boreotrophon avalonensis
Boreotrophon macouni
Boreotrophon pedroanus
Boreotrophon disparilis
Boreotrophon elegantulus
Warenia elegantula
Boreotrophon bentleyi
Boreotrophon kabati
Boreotrophon rotundatus
Boreotrophon tripherus
Boreotrophon clathratus
Boreotrophon multicostatus
Boreotrophon alaskanus
(tree size 1)
Boreotrophon eucymatus
Boreotrophon triangulatus
Nipponotrophon stuarti
Scabrotrophon stuarti
Boreotrophon truncatus
Boreotrophon clavatus
Boreotrophon cepulus
Boreotrophon verrilli
Boreotrophon albospinosus
Boreotrophon raymondi
Boreotrophon staphylinus
Boreotrophon orpheus
Boreotrophon abyssorum
Boreotrophon aculeatus
Boreotrophon coronatus
Boreotrophon albus
Boreotrophon apolyonis
Boreotrophon aomoriensis
Boreotrophon cepula
Boreotrophon candelabrum
Boreotrophon cymatus
Boreotrophon dabneyi
Boreotrophon egorovi
Boreotrophon flos
Boreotrophon gaidenkoi
Boreotrophon hazardi
Boreotrophon houarti
Boreotrophon mazatlanicus
Boreotrophon pacificus
Boreotrophon okhotensis
Boreotrophon tolomius
Boreotrophon trophonis
Boreotrophon xestra
Boreotrophon keepi
Boreotrophon harasewychi
Boreotrophon pygmaeus
Boreotrophon kamchatkanus
Boreotrophon cascadiensis
Boreotrophon cordellensis
Boreotrophon cortesianus
Boreotrophon obesus
Boreotrophon subapolyonis
Boreotrophon vancouverensis
Boreotrophon aleuticus
Boreotrophon pseudotripherus
Boreotrophon santarosensis
Boreotrophon tannerensis
Boreotrophon indicus
Boreotrophon ithitomus
Boreotrophon maclaini
Boreotrophon smithi
Boreotrophon stuarti
Boreotrophon tenuirostratus
Boreotrophon actinophorus
Boreotrophon alborostratus
Boreotrophon calliceratus
Boreotrophon craticulatus
Boreotrophon dalli
Boreotrophon fabricii
Boreotrophon fraseri