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Hemichordata (/ˌhɛmɪkɔːrˈdeɪtə/ HEM-ih-kor-DAY-tə) is a
phylum which consists of triploblastic, eucoelomate, and
bilaterally symmetrical marine deuterostome...
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Deuterostomia is
further divided into four phyla: Chordata, Echinodermata,
Hemichordata, and the
extinct Vetulicolia known from
Cambrian fossils. The extinct...
- pterobranchs, is a
class of
small worm-shaped animals. They
belong to the
Hemichordata, and live in
secreted tubes on the
ocean floor.
Pterobranchia feed by...
- PMID 10781046.
Biogeography and
adaptations of
torquaratorid acorn worms (
Hemichordata: Enteropneusta)
including two new
species from the
Canadian Arctic -...
- pterobranchs, a rare
group of
modern marine animals belonging to the
phylum Hemichordata.
Comparisons are
drawn with the
modern hemichordates Cephalodiscus and...
- Platyhelminthes, Nematoda,
Annelida (segmented worms), Chaetognatha,
Hemichordata, and Phoronida. For a list of
marine animals that have been
called "sea...
-
conodonts are chordates, but
their internal placement is less certain.
Hemichordata (which
includes the
acorn worms) was
previously considered a
fourth chordate...
- urchins,
brittle stars, sea cu****bers,
feather stars, sea lilies, etc.)
Hemichordata (acorn
worms (Enteropnuesta) and
Pterobranchia (including Graptolithina))...
- Chordata.
Hyman (1959), however,
placed them near
Echinodermata and gave
Hemichordata a
status of an
independent phylum.
Balanoglossus are burrowing, exclusively...
- The
following is a list of the
classes in each
phylum of the
kingdom Animalia.
There are 107
classes of
animals in 33
phyla in this list. However, different...
