Callipurbeckiidae
(tree size 13)
Macrosemiidae
(tree size 32)
Macrosemiiformes
Archaeolepidotus
(tree size 1)
Hemicalypterus
(tree size 1)
Paralepidosteus
(tree size 1)
Sphathiurus
Semionotidae
(tree size 37)
Heterostrophus
(tree size 1)
Dapedidae
(tree size 18)
Archaeomaenidae
(tree size 5)
Semionotiformidae
(tree size 1)
Tlayuamichin
(tree size 1)
Dapediidae
(tree size 9)
Eosemionotidae