appendicular skeleton. girdles pelvic pectoral limbs concentrate on tetrapod limbs
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Appendicular Skeleton
Girdles
• Pelvic
• Pectoral
• Limbs
• Concentrate on Tetrapod Limbs
Fig. 9.4
Tetrapod Limb
• Typical 4 limbs
• Primarily a modification of the Rhipidistian fin
wingspaddles
Lost 2
Lost 4Modified elements
• Recall: Vp = Vg + Ve + Vgxe
• V = variation
• p = phenotypic
• g = genotypic
• e = environmental
Morphology(anatomy)
Behavior& Performance
Resource use(ecology)
Fitness
Three main components
• With respect to the pectoral and pelvic girdles:
– Serially homologous –
1. Propodium (= stylopodium) – upper arm, upper leg
2. Epipodium (= zeugopodium) – forearm, shin
3. Autopodium – manus or pes (digits, and wrist and palm, or ankle and sole
• Drawings of fore and hind limbs
Fig. 9.12
Focus 9.2
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