Children (22 direct children, 26 direct and indirect children):
Regal horned lizard
Phrynosoma solare
Mexican plateau horned lizard
(tree size 2)
Phrynosoma orbiculare
Flat-tail horned lizard
Flat-tailed horned lizard
Roundtail horned lizard
Round-tailed horned lizard
Gulf coast horned lizard
Phrynosoma wigginsi
Mexican horned lizard
Phrynosoma taurus
Short-tailed horned lizard
Phrynosoma braconnieri
Texas horned lizard
Phrynosoma cornutum
Pigmy short-horned lizard
Phrynosoma douglasii
Greater short-horned lizard
Short-horned lizard
Coast horned lizard
San diego horned lizard
Giant horned lizard
Phrynosoma asio
Rock horned lizard
Phrynosoma ditmarsi
Phrynosoma goodei
Desert horned lizard
(tree size 2)
Phrynosoma platyrhinos
Phrynosoma cerroense
Phrynosoma blainvillii
Phrynosoma sherbrookei
Phrynosoma ornatissimum
Phrynosoma brevirostris
Phrynosoma bauri
Baur's short-horned lizard
Phrynosoma diminutum