-
ancestral arthropod. Only two
fossil species are
confidently ****igned as
onychophorans:
Antennipatus from the Late Carboniferous, and
Cretoperipatus from the...
-
Antennipatus is an
extinct genus of
onychophoran (velvet worm). This
genus is
notable for
being the
oldest known onychophoran fossil,
which comes from France...
-
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...
- the term "Lobopodia" is
sometimes expanded to
include tardigrades and
onychophorans as well.
Common characteristics of the
Panarthropoda include a segmented...
- Smith,
Martin R.; Ortega-Hernández,
Javier (2014). "Hallucigenia's
onychophoran-like
claws and the case for Tactopoda" (PDF). Nature. 514 (7522): 363–366...
- 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...
-
Burgess shale.
Extant phyla in
these rocks include molluscs, brachiopods,
onychophorans, tardigrades, arthropods,
echinoderms and hemichordates,
along with...
- the
Chengjiang biota, with
prickly legs, a pair of 'antennae', and an
onychophoran-like body
outline (Early Cambrian, ~520 Ma). It also has a pair of frontal...
-
thorax in
addition to four wings.
Helenodora inopinata, a stem-group
onychophoran known from
Indiana A
roachoid insect found in
Carboniferous rocks of...
