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cladistics - What is an apomorphy? What is a plesiomorphy? Can …
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zoology - For fish, does a bony skeleton have any advantages over …
2) Bone as a Plesiomorphic (ancestral feature), but not the entire skeleton: If we take what I've said above, it certainly suggests that your point 3 is in the right direction w.r.t. split between …
Were there any vertebrates with 6 or more limbs?
Sep 7, 2019 · Two extinct groups, including Placoderms and Acanthodians, exhibit variation in the number of paired appendages, suggesting this may be a plesiomorphic trait.... microcomputed …