Asterzalia: Difference between revisions

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(Created page with "{{Taxonomy |name=Asterzalia |image= |caption=extant |Classification=Phylum |Prime Species=Lilstar }} right'''Asterzalia''' is the most primitive asterz...")
 
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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 [[ProtoasteriaPiktivarelia]] (Class)===
''TheRadially mostsymmetric primitivefilter-feeding asterzalia, which lackhave anynervous kindsystems ofand nervousa systemwaste anddisposal aresystem, essentiallybut star-shapedotherwise bundleslack ofcomplex cells.internal (Extinct)organs.''
 
===Class [[PiktivareliaBranchiatunica]] (Class)===
''Radially symmetricBilateral asterzalia whichwith have nervous systemsgills and a waste disposal system, but otherwisemouths lackboth complexderived internalfrom organsbaits.''
 
===Class [[LagnodactyliaTriasteria]] (Class)===
''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.''