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Anagignoskomena

Anagignoskomena is a historical taxonomic grouping within the protozoan phylum Apicomplexa. The term has appeared in various older classifications as a proposed clade intended to group certain apicomplexan parasites, but its exact composition has varied between authors and over time. Because different researchers has circumscribed the group in different ways, there is no universally accepted definition or member list for Anagignoskomena.

In the context of the history of protist taxonomy, Anagignoskomena reflects the shift from morphology-based schemes

Today, when apicomplexan systematics are discussed, emphasis tends to be on well-supported clades recovered by molecular

See also: Apicomplexa, Gregarines, Coccidia.

to
phylogeny-based
frameworks.
With
the
rise
of
molecular
data
and
modern
phylogenetic
analyses,
many
scientists
have
re-evaluated
apicomplexan
relationships,
and
the
utility
of
Anagignoskomena
as
a
formal,
natural
group
has
been
questioned.
As
a
result,
the
term
is
now
encountered
mainly
in
historical
reviews
or
discussions
of
taxonomic
history
rather
than
in
contemporary
systematic
treatments.
studies
and
on
established
groups
such
as
the
diverse
apicomplexan
lineages
within
Apicomplexa,
rather
than
on
the
historically
proposed
Anagignoskomena.
The
term
thus
serves
as
a
note
in
the
record
of
the
field’s
evolving
understanding
rather
than
as
a
current,
widely
used
classification.