-
based on the
bilateral or
nearly bilateral organisation of
proarticulatans,
though proarticulatans are not
likely to be a
member of the
bilaterian crown group...
-
symmetry of
gliding reflection. Some
recent research suggests that some
proarticulatans like ****insonia have
genuine segments, and the
isomerism is superficial...
- is
called glide reflection symmetry, and is a
diagnostic feature of
proarticulatans.
Transverse elements decrease in size from one end to the
other and...
-
Archaeaspinus fedonkini is an
extinct proarticulatan organism from the Late
Precambrian (Ediacaran) period.
Archaeaspinus was
discovered in
Zimnii Bereg...
-
pattern relatively to the axis of the body. In
other words,
although proarticulatans are
bilaterally symmetrical, one side is not the
direct mirror image...
-
annelid worm, a rangeomorph-like frond, a
variant of Charniodiscus, a
proarticulatan, an
arthropod (perhaps
related to the trilobites), or even an extinct...
-
Extinct genus of
proarticulatan fossil...
- communities.
Recent studies of
Cephalonega compare it,
Tamga and
other small proarticulatans to the
juvenile form of Yorgia, and
place them
within Cephalozoa as...
- (lit. "Leaf animal" in Gr****) is an
Ediacaran imprint that
resembles a
proarticulatan and has been
interpreted as a
feeding trace. It
usually occurs in long...
-
Cyanorus singularis is a
small proarticulatan,
closely related to
Spriggina and Marywadea. The
anterior part of the body was most
likely not segmented...
