Lab 3 Assignment - Chondrichthyes Diversity.docx - Lab...

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Lab Assignment 3: Chondrichthyes Diversity Name: Karissa Beloyan 1. What characteristics are unique to the Chondrichthyes? Which of these characteristics are plesiomorphic (ancestral) vs. synapomorphies?
2. For each of the following clades, who belongs within that clade? What features/synapomorphies make each of these distinct? Can you find evidence of those features on the specimens/pictures of some of the taxa within the clade? (Also, for practice with the phylogeny, who is each clade’s sister taxon?)
Batoidea Skates & rays (electric rays, shovelnose rays, skates, stingrays and manta rays) Flat bodied, boneless

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