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A comprehensive overview of Chordate Phylogeny, focusing on the evolution of Gnathostomes and Osteichthyes. Topics covered include the sister taxon to Chordates, basal Chordates, Jawless Vertebrates, Gnathostomes, Chondrichthyes, Osteichthyes, and various fish lineages. Discussions include the development of skeletons, tooth structures, reproductive adaptations, and respiratory systems.
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Typology: Lecture notes
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CBJ Ch. 34 - 1
sister taxon to chordates
basal chordates
Jawless vertebrates
2
CBJ Ch. 34 - 5
CBJ Ch. 34 - 7
hammerhead shark^ hammerhead shark
spiral valve increases surface area for digestion & absorption!
spiral valve increases surface area for digestion & absorption!
nostril^ nostril eye^ eye
bony teeth^ bony teeth
CBJ Ch. 34 - 8 whale shark , a filter-feeder whale shark , a filter-feeder
live birth
CBJ Ch. 34 - 10
“^ “umbilical cord”umbilical cord”
CBJ Ch. 34 - 14
gill slits^ gill slits
mouth^ mouth
“bony fish”
ray-finned^ ray-finned
coelocanth
lungfish lobe-finned^ lobe-finned
a swim bladder is a “lung derivative”
a swim bladder is a “lung derivative”