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240 230 220 210 200 190 180 170 160 150 140 130 120 110 Millions of years ago Ornithischian dinosaurs III Reduction Eoraptor of IV and V II III IV Loss of V; II Coelophysolds and III about the same length III Loss of IV Allosaurids Four digits In hands and V; II is longer Hollow bones, furcula (wish bone) Compsognathids III Pubic boot, three digits Tyrannosauroids In hand Reduction of III Hollow cylindrical feathers Tufted feathers Oviraptorosaurs Dromeosaurids Semilunate carpal in hand, feathers dosed with barbules and hooks, nest-brooding Archaeopteryx Feathers dosed and asymmetrical Living birds Long arms (ulna longer than femur) Toothless beak, fused wing digits, short feathered tail III Elongation of II Reduction of I; fusion of II and III; loss of some phalanges Which character is a shared, derived trait that tells us that living birds are most closely related to Archaeopteryx? Question options: A) Toothless beak B) Long arms (ulna longer than femur) C) Tufted feathers

240 230 220 210 200 190 180 170 160 150 140 130 120 110 Millions of years ago Ornithischian dinosaurs III Reduction Eoraptor of IV and V II III IV Loss of V; II Coelophysolds and III about the same length III Loss of IV Allosaurids Four digits In hands and V; II is longer Hollow bones, furcula (wish bone) Compsognathids III Pubic boot, three digits Tyrannosauroids In hand Reduction of III Hollow cylindrical feathers Tufted feathers Oviraptorosaurs Dromeosaurids Semilunate carpal in hand, feathers dosed with barbules and hooks, nest-brooding Archaeopteryx Feathers dosed and asymmetrical Living birds Long arms (ulna longer than femur) Toothless beak, fused wing digits, short feathered tail III Elongation of II Reduction of I; fusion of II and III; loss of some phalanges Which character is a shared, derived trait that tells us that living birds are most closely related to Archaeopteryx? Question options: A) Toothless beak B) Long arms (ulna longer than femur) C) Tufted feathers

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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240 230 220 210 200 190 180 170 160 150 140 130 120 110 Millions of years ago Ornithischian dinosaurs III Reduction Eoraptor of IV and V II III IV Loss of V; II Coelophysolds and III about the same length III Loss of IV Allosaurids Four digits In hands and V; II is longer Hollow bones, furcula (wish bone) Compsognathids III Pubic boot, three digits Tyrannosauroids In hand Reduction of III Hollow cylindrical feathers Tufted feathers Oviraptorosaurs Dromeosaurids Semilunate carpal in hand, feathers dosed with barbules and hooks, nest-brooding Archaeopteryx Feathers dosed and asymmetrical Living birds Long arms (ulna longer than femur) Toothless beak, fused wing digits, short feathered tail III Elongation of II Reduction of I; fusion of II and III; loss of some phalanges Which character is a shared, derived trait that tells us that living birds are most closely related to Archaeopteryx? Question options: A) Toothless beak B) Long arms (ulna longer than femur) C) Tufted feathers
Transcribed Image Text:240 230 220 210 200 190 180 170 160 150 140 130 120 110 Millions of years ago Ornithischian dinosaurs III Reduction Eoraptor of IV and V II III IV Loss of V; II Coelophysolds and III about the same length III Loss of IV Allosaurids Four digits In hands and V; II is longer Hollow bones, furcula (wish bone) Compsognathids III Pubic boot, three digits Tyrannosauroids In hand Reduction of III Hollow cylindrical feathers Tufted feathers Oviraptorosaurs Dromeosaurids Semilunate carpal in hand, feathers dosed with barbules and hooks, nest-brooding Archaeopteryx Feathers dosed and asymmetrical Living birds Long arms (ulna longer than femur) Toothless beak, fused wing digits, short feathered tail III Elongation of II Reduction of I; fusion of II and III; loss of some phalanges Which character is a shared, derived trait that tells us that living birds are most closely related to Archaeopteryx? Question options: A) Toothless beak B) Long arms (ulna longer than femur) C) Tufted feathers
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