-
ancestral arthropod. Only two
fossil species are
confidently ****igned as
onychophorans:
Antennipatus from the Late Carboniferous, and
Cretoperipatus from the...
-
priapulids and
onychophorans,
there is a
layer of
outermost circular muscles and a
layer of
innermost longitudinal muscles. The
onychophorans also have a...
-
modern onychophorans. On the
other hand, some
analysis rather support the
position of
Hallucigenia as a
basal panarthropod outside of
onychophoran stem-group...
-
genus of
French onychophoran, a
group colloquially known as
velvet worms. The
genus is
notable for
being the
oldest confirmed onychophoran fossil, dating...
-
Burgess shale.
Extant phyla in
these rocks include molluscs, brachiopods,
onychophorans, tardigrades, arthropods,
echinoderms and hemichordates,
along with...
- the term "Lobopodia" is
sometimes expanded to
include tardigrades and
onychophorans as well.
Common characteristics of the
Panarthropoda include a segmented...
- evident. A pair of legs
marks the
posterior end of the body,
unlike in
onychophorans where the ****
projects posteriad; this may be an
adaptation to the...
- legs, and a pair of
slime papillae,
showing it was it was a crown-group
onychophoran.
Based on
details of its fine anatomy,
Cretoperipatus was
placed in the...
-
thorax in
addition to four wings.
Helenodora inopinata, a stem-group
onychophoran known from
Indiana A
roachoid insect found in
Carboniferous rocks of...
-
Antennacanthopodia is a small,
onychophoran-like
lobopodian from the
Chengjiang biota that
dates to
about 520
million years ago (Cambrian
Stage 3). It...
