-
Arctometatarsalia, as it has a very
similar definition.
While "Ornithomimiformes" is the
newer group,
Sereno rejected the idea that
Arctometatarsalia...
- the
Ornithomimosauria as
sister clades within either Thomas Holtz's
Arctometatarsalia or Paul Sereno's Ornithomimiformes. The
discovery of Haplocheirus...
-
ornithomimosaurs and
troodonts into a
coelurosaurian clade called Arctometatarsalia based on a
common ankle structure where the
second and
fourth metatarsals...
- two
classification systems for theropods. The
first is the
clade Arctometatarsalia, made up of tyrannosauroids, ornithomimosaurs, and troodontids, because...
- cursoriality. Originally, this
character was used to
define a clade, the
Arctometatarsalia,
which is now
considered polyphyletic. axis The axis is the second...
-
ornithopod dinosaurs.
Among the former, the
Ornithomimiformes (= "
Arctometatarsalia"
sensu stricto) were
convergent to
ratites in many respects, including...
- same as that of a
clade proposed in 1996 by Thom
Holtz called the
Arctometatarsalia.
Padian and the
others proposed a new
redefinition of Ornithomimosauria...
