in cephalochordates
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Answer:A cephalochordate is an animal in the chordate subphylum, Cephalochordata. They are commonly called amphioxus or lancelets. They are chordates with all 5 synapomorphies, the characteristics all chordates have during the larval or adulthood stages. These synapomorphies include: notochord, dorsal hollow nerve cord, endostyle, pharynx and post-anal tail. The fine structure of the cephalochordate notochord is best known for the Bahamas lancelet, Asymmetron lucayanum Cephalochordates are represented in modern oceans by the Amphioxiformes.
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