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Priapulida (priapulid worms, from Gr. πριάπος, priāpos 'Priapus' + Lat. -ul-, diminutive),
sometimes referred to as **** worms, is a
phylum of unsegmented...
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secondarily lost in
certain groups. An
unpaired ventral nerve cord,
present in
Priapulida and Nematoida,
appear to be the
ancestral condition,
making the paired...
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digestive tract instead of
around it like in
other coelomate animals.
Priapulida appears to
belong to the
pseudocoelomate animals, but the possibility...
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proposed on
morphological grounds to
unite three phyla: the Kinorhyncha, the
Priapulida and the Loricifera. The
three phyla have four
characters in
common — chitinous...
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important parasites.
Smaller phyla related to them are the Kinorhyncha,
Priapulida, and Loricifera.
These groups have a
reduced coelom,
called a pseudocoelom...
- pharynx") of a
possible new
species of Meiopriapulus, a
marine worm in the
Priapulida,
bears pharyngeal teeth.
Fossils of the
Yunnanozoon and
Haikouella possess...
- 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...
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Priapulids Genus Phylum class Locality of
Origin Notes Images Ancalagon Priapulida (?)
Archaeopriapulida Walcott Quarry An
extinct priapulid worm. This worm...
- a
resemblance to
adult kinorhyncha and some
species of
Loricifera and
Priapulida, all
members of the
group Scalidophora. The
earliest Nematomorph could...
- The
Wheeler Shale (named by
Charles Walcott) is a
Cambrian (c. 507 Ma)
fossil locality world-famous for
prolific agnostid and
Elrathia kingii trilobite...
