Lobe-Finned Fish vs. Sharks: Are They More Derived in Evolutionary Relationships?
Lobe-finned fish are more derived than sharks. Both belong to the Chordata phylum but diverged at different times. Lobe-finned fish share a more recent common ancestor with tetrapods and ray-finned fish. Sharks are cartilaginous fish that branched off around 450 million years ago, placing them lower on the evolutionary tree. In terms of evolutionary relationships, … Read more