-
arthropods may be
either biramous or uniramous. A
uniramous limb
comprises a
single series of
segments attached end-to-end. A
biramous limb, however, branches...
- (armor plate) and
bearing a pair of
biramous limbs. However,
whether the
ancestral limb was
uniramous or
biramous is far from a
settled debate. This Ur-arthropod...
- arthropods, such as insects,
myriapods and chelicerates, by the
possession of
biramous (two-parted) limbs, and by
their larval forms, such as the
nauplius stage...
- (unbranched) antenna-like structures,
followed by one or more
pairs of
biramous (having two
major branches) leg-like structures, as seen in some modern...
-
lacks clear segmentation (arthrodization).
Along the body are
pairs of
biramous appendages, the
counts of
which differ between species (Isoxys curvirostratus...
-
multisegmented head, a hypostome/labrum complex, and by
bearing pairs of
segmented biramous limbs. The
clade contains all
living arthropods (i.e.
chelicerates and...
-
homologized to the
outer gill
branch and
inner leg
branch of
arthropod biramous limbs seen in Marrella, trilobites, and crustaceans.
Zhang and
Briggs (2007)...
-
rigid pleotelson. The
first five
abdominal segments each bear a pair of
biramous (branching in two)
pleopods (lamellar
structures which serve the function...
- secondarily. The head
bears two
pairs of antennae, the
first of
which is
often biramous (branching into two parts) and the
second pair bear
exopods (outer branches)...
-
appendages are
treated as antennae, and the
other appendages on head are
biramous. The mouth opens on the
ventral surface in
front of the
second pair of...