Biol 36
Chris Gillen
Lecture outline 7

Classification methodology (continued)

Primitive vs. derived
Ontogeny and phylogeny

Cladistics vs. numerical methods vs traditional taxonomy

• similarity/dissimilarity and genealogy
• example - chordate evolution

Cladistics

• hypothesis testing
• direct inference of descendants
• example - parental care in dinosaurs
• Parsimony
• Example

Paper analysis

• wa grading
• consensus
• where could we take the analysis

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