-
segments are
equal in size. Most
other tetrapods have
pleurocentra and
intercentra which are
drastically different in size and shape.
Embolomeres were among...
- had lost
their pleurocentra, and the
intercentra made up the
entire body of the vertebrae.
Embolerimi had
intercentra and
pleurocentra that were of equal...
- holospondylous,
having only a
single ossification per segment. They
lacked intercentra, even in the tail, and had are no free
haemal arches. The
neural arch...
-
containing a
remnant of the notochord.
Reptiles often retain the
primitive intercentra,
which are
present as
small crescent-shaped bony
elements lying between...
-
hesitated from
designating Proterogyrinus as a true embolomere,
because its
intercentra (the
forward portion of each vertebra) were
smaller than its pleurocentra...
- stereospondyls, it had weak
simplified vertebrae,
consisting of
large intercentra and
neural arches,
which is
known as the
stereospondylous condition....
- ("primitive")
features relative to the rest of the group.
These include large intercentra (wedge-like
components of the vertebrae),
folded enamel, and a large...
-
defined by the
structure of the vertebrae,
having large semi-circular
intercentra below the
notochord and
smaller paired though prominent pleurocentra...
-
neural spines of the neck vertebrae; the long neck ribs; the lack of
intercentra articulating with the
centra of the
trunk vertebrae; and the absence...
-
large spaces between the
centra where bones called intercentra could fit,
although no
intercentra are
preserved in the six
Echinerpeton specimens. The...
