Origin and Diversification of the Vertebrates
PPT Slide
Vertebrate Characteristics
Origin and Diversification of Vertebrates
Echinoderms
Hemichordata (Acorn Worms)
Urochordata (Sea squirts)
Cephalochordata (Lancelates)
Cephalochordates of the Burgess Shale - Pikaia
Craniates: Class Myxini (Hagfish) The most primitive known "vertebrate"
Craniates: Heterostracans: The first truly abundant fishes
The First True Vertebrates (no jaws): Lampreys
Osteostracans: (extinct armored jawless fishes
Craniates that may be important transitional fossils: Haikouella and Myllokunmingia
Conodonts
Re-examining Vertebrate Phylogeny
Placoderms: the most primitive jawed fish
Acanthodians: earliest known jawed fishes
Chondrichthyes: Cartilaginous fish
Osteichthyes (Bony fish): Ray-finned fish
Osteichthyes (Bony fish): Lobe-finned fish
Overview of Vertebrate Phylogeny
Email: de3@evansville.edu
Home Page: http://www2.evansville.edu/de3/
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