- An
arctometatarsalian organism is one in
which the
proximal part of the
middle metatarsal is
pinched between the
surrounding metatarsals. The
trait appears...
-
Holtz Jr.
proposed a
close relationship between theropods with an
arctometatarsalian foot; that is,
bipedal dinosaurs in
which the
upper foot
bones were...
-
metatarsus could have been
arctometatarsalian and was just
disarticulated as preserved.
Supporting an
arctometatarsalian condition,
Currie and David...
-
Basal tyrannosauroids like Dilong, however, were
found with non-
arctometatarsalian ankles,
indicating that this
feature evolved convergently. Arctometatarsalia...
-
proximal portion of
metatarsal IV
suggests that
Dryptosaurus had an
arctometatarsalian foot, an
advanced feature shared by
derived tyrannosauroids, such...
- as is
common for
large animals. The
metatarsus was
short and not
arctometatarsalian, as in most
other theropods. The claw
bones of the feet were blunt...
- of the hand is fused,
adding to the strength. The foot is
strongly arctometatarsalian, with the
third metatarsal excluded from the
front surface of the...
- side-to-side
flattened and not
pinched at the
upper end, thus
lacking an
arctometatarsalian (pinched
upper end) condition. The
lower end of
metatarsal IV had...
-
proportion to body size of any theropod. In the foot, the
metatarsus was "
arctometatarsalian",
meaning that the part of the
third metatarsal near the
ankle was...
-
abruptly at mid-length,
wedging between those bones and
disappearing (an
arctometatarsalian foot structure). The
third toe was
proportionally shorter in relation...
