-
composed of a
prothorax that
generally has 14 or 15 segments, and an
opisthothorax that has
between 0 and up to 34 segments. In
segment 3, the
areas right...
- Fuxian****idae. In
comparison to Fuxian****a it has a wide, oval
shaped opisthothorax and a
proportionally longer,
narrow tail-like abdomen, with 3 prothoracic...
- Fuxian****idae the
thorax is
divided into two sections, the
anterior wide
opisthothorax and the
posterior narrow limbless tail-like abdomen. Per Liu et al....
- present. Crescent-shaped eye-ridges.
Thorax not
divided in
prothorax and
opisthothorax, no
macropleural segment.
Lemdadella is
currently the
oldest trilobite...
- The
segments look a bit
degenerated behind the 15th to 18th (or an
opisthothorax can be distinguished). The
pleural spines are long and sickle-shaped...
- 6th
carrying very large, trailing,
pleural spines) and
extremely long
opisthothorax of up to 97
segments (Balcoraciana
dailyi holds the
record for greatest...
- can
readily be
distinguished from the
terminal 9 to 11 (forming the
opisthothorax). The last
segment of the
prothorax may
carry a
large spine. The tips...
-
pleural spines. The
segments look
degenerated behind the 15th (or an
opisthothorax can be distinguished). The
tailshield (or pygidium) is very
small and...
- The
portion of the
thorax where the
pleural lobes are
reduced (or
opisthothorax)
consist of at
least 23 segments. Lieberman, B.S. (1999). "Systematic...
