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Related Flashcards
Cards In This Set
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Superclass (jawless fish)
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Agnatha
notochord, external fertilization no jaws, no bones, no paired fins |
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Hagfish
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Myxini (pucker)
biting mouth w/ jaw, poor eyesight, ties in knot to gain leverage, no larval form |
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Lamprey
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Cephalospidomorphi (head form)
sucking mouth, moderate eyesight, dioecious, parasitic produces blood coagulant |
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Superclass (fish, amphibians, reptiles, birds and mammals)
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Gnathostomata
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Class (Sharks)
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Chondricthyes, cartilagenous skeleton, ssharks fusiform w. heterocercal tail, placoid scales, intrinsic fins
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Class (fish)
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Actimoptergii (ray-finned) bass and sarcoptera (fleshy finned)
dermal scales of ganoid, cycloid and ctenoid bony fish |
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Ostracoderms
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Oldest fish w/ fossil evidence
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Fish scales
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Ganoid (gar)
placoid (sharks) ctenoid (bass) cycloid (trout) |
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Class (Amphibians)
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Amphibia (tetrapods)
1) amniotes (reptiles, birds and mammals) 2) anamniotes (amphibians) |
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Amphibian characteristics
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4 limbs, webbed feet, moist skin w/ oil glands, respiration w/ gills, wings and skin
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Hagfish form
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Anguilleform
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Order (limbless)
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Apoda, blind, eat worms and eggs or live born
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Order (caudata)
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Urodela, tailed amhibians, salamanders, metamorphic, mate in or near water and terrestrial
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Order (Frogs and Todas)
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Anura, ectotherms, lay eggs, external fertilization, railless adults, tadpoles (internal and external gills, no limbs, no tail and mouth for plant matter) Frogs have smmoth skin and can jump
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Paedomorphic
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Child or larval form (mud puppy)
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