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1) Heteromorphic paraxonemal rods: The paraxonemal rod of the posterior/ventral flagellum (flagellum 1) has a three-dimensional lattice appearance, while the rod of the anterior/dorsal flagellum (flagellum 2) has a tubular/whorled appearance. |
Ref:
A.G.B. Simpson, 2020: [47] (definition).
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2) A distinctive, asymmetric arrangement of three flagellar microtubular roots, with one particular root supporting longitudinally a tubular feeding apparatus. |
Ref:
A.G.B. Simpson, 2020: [47].
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3) Tubular extrusomes. The extrusomes are tubular, have a thick wall when in the undischarged state, and expand and elongate as a tubular lattice upon discharge. Tubular extrusomes are present in members of all major clades of Euglenozoa, but have been secondarily lost in numerous clades. |
Ref:
A.G.B. Simpson, 2020: [47].
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