Asterzalia: Difference between revisions
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{{Taxonomy
|name=Asterzalia
|image=Asterpteron_filtraster.png
|caption=extant
|Classification=Phylum
|Prime Species=[[Lilstar]]
|parent=Carpozoa
}}
[[File:Extant.jpg|right]]'''Asterzalia''' is the most primitive [[Asterzoa|asterzoan]] phylum, yet ironically the most "advanced" in terms of intelligence and lifestyle. All extant members have four arms (one of which is modified for waste disposal), a nervous system, chemoreceptive skin patches, and the ability to swim. Though they ancestrally had four-point radial symmetry, some have evolved bilateral symmetry by differentiating their arms as they mature; all bilateral species, particularly those within Lagnodactylia, have radially symmetric larval or embryonic stages.
Cladistically, Asterzalia would also include [[Asterfolia]] and [[Asterstreidia]], but these are traditionally not included on account of their differing morphology and not being a part of the crown group.
==Subgroups==
===Class [[
''Radially symmetric filter-feeding asterzalia which have nervous systems and a waste disposal system, but otherwise lack complex internal organs.''
===Class [[
''Bilateral asterzalia with gills and mouths both derived from baits.''
===Class [[Triasteria]]===
''Bilateral asterzalia derived from a triradial body plan.''
===Class [[Lagnodactylia]]===
''Asterzalia which have mouths for eating larger prey, bilateral symmetry in adulthood, and flexible digits on their arms used for copulation and sometimes locomotion.''
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