@Lecture17_9

@Lecture17_9 - 1 1 Fall 2009, GEL 107: Lecture 17...

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Unformatted text preview: 1 1 Fall 2009, GEL 107: Lecture 17 PALEOBIOLOGY 2 Fish 3 How are living fish grouped? Where do we belong in the tree of fish? What features of ours evolved in fish? What are the major extinct groups of fish? What features of ours evolved in what fish? Are eels basal (or primitive)? Questions 4 bony (Osteichthyes) cartilaginous (Chondrichthyes) others 5 Hagfish (Hyperotreti) 6 Lamprey (Hyperoartia) 7 8 9 Myllokunmingia Haikouichthys Chengjiang Fauna (Early Cambrian) 2 10 others bony (Osteichthyes) cartilaginous (Chondrichthyes) 11 Chondrichthyes chimeras rays & skates sharks dogfish 12 others bony (Osteichthyes) cartilaginous (Chondrichthyes) 13 others bony (Osteichthyes) rayfin (Actinopterygii) cartilaginous lobefin (Sarcopterygii) 14 coelacanth Sarcopterygii 15 Sarcopterygii lungfish 16 others bony (Osteichthyes) rayfin (Actinopterygii) cartilaginous lobefin (Sarcopterygii) 17 How are living fish grouped? Where do we belong in the tree of fish? What features of ours evolved in fish? What are the major extinct groups of fish? What features of ours evolved in what fish? Are eels basal (or primitive)? Questions 18 Hagfish (Hyperotreti) 3 19 Lamprey (Hyperoartia) 20 True eels 21 Muraenidae Anguilliformes Moary eels 22 Congridae Anguilliformes Conger eels 23 Hailtail 24 Anarhichadidae Perciformes Wolf eels 25 Zoarcidae Perciformes Eelpouts 26 lungfish 27 How are living fish grouped? Where do we belong in the tree of fish?...
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@Lecture17_9 - 1 1 Fall 2009, GEL 107: Lecture 17...

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