- four
characters in
common —
chitinous cuticle that is moulted,
rings of
scalids on the introvert, flosculi, and two
rings of
introvert retracts. The introvert...
- the
Scalidophora clade named after the
spines covering the
introvert (
scalids). They feed on slow-moving invertebrates, such as
polychaete worms. Some...
-
spines or
scalids. The
scalids of the
first circle of the
introvert form a so-called
corona and are
remarkably larger than the
succeeding scalids. The gut...
-
three phyla share four
characters in
common –
chitinous cuticle,
rings of
scalids on the introvert, flosculi, and two
rings of
introvert retracts. However...
-
surrounded by
circles of
spiny sclerites,
which were
reminiscent of the
scalids of priapulids, kinorhynchs, and loriciferans. The
inside of the pharynx...
- have been
preserved primarily as
organic microfossils, such as
isolated scalids and
pharyngeal teeth. They are
probably closely related or paraphyletic...
