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Phylogenetic tree of great white shark
198
Transcript
Sources
http://academic.reed.edu/biology/professors/srenn/pages/teaching/
web_2006/Great_White_Sharks_PG_RB/phylogeny.html
http://en.wikipedia.org/wiki/Cladoselache
http://dinosaurs.about.com/od/otherprehistoriclife/ss/The-First-Animals-Of-Their-Kind_19.htm
http://en.wikipedia.org/wiki/Stethacanthus
http://www.sharkfriends.com/sharks/paleo6.html
http://en.wikipedia.org/wiki/Xenacanthus
http://fossil.wikia.com/wiki/Ctenacanthus
http://en.wikipedia.org/wiki/Hybodus
http://en.wikipedia.org/wiki/Megalodon
http://en.wikipedia.org/wiki/Great_white_shark
Great White shark
16 mya to present day
Megalodon
28-1.5 mya
Hybodonts
End of the Permian period to the late Cretaceous
Ctenacanthus
Early Carboniferous Period
Xenacanthus
Late Devonian to the Triassic
Symmorium
250 mya
Stethacanthus
Early Carboniferous epoch, 360 mya
Cladoselache
Late Devonian, 370 mya
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