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27 terms

Reptiles

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Reptilia
Class for Reptiles
Amniotic Eggs, Dry Skin, Thoracic breathing
All living reptiles exhibit three key features.... ( all 3 )
Amniotic Eggs
Watertight eggs laid on land
Dry Skin
Covers body and prevents water loss
Thoracic Breathing
Increases lung capacity
Amnion
Fluid filled cavity that suspends embryo and provides cushion in amniotic egg
four
the amniotic egg has #? membranes
Yolk Sac
Provides food for embryo
Allantois
Excretes wastes from embryo
Chorian
Allows Oxygen entry for embryo
Eggshell
the outer layer for the amniotic egg
Anapsids
No holes on side of skull behind eye orbit
Synapsids
One hole on side of skull behind eye orbit
Diapsids
Two holes on the side of the skull behind eye orbit
Pelycosaurs
First land vertebrates to kill beasts their own size
Archosaurs
first bipedal land vertebrate
Cretaceous
Period when dinosaurs became extinct
Internal Fertilization
sperm fertilizes eggs before protective membranes are formed
Improved circulation
oxygen provided to body more efficiently
Ectothermic
Are all living reptiles Ectothermic or Endothermic?
Chelonia
Order containing turtles and tortoises
A) Chelonia
B) Rhynchocephalia
C) Squamata
D) Crocodylia
Tortoises
Terrestrial Chelonia, dome-shaped shells
Turtles
Mostly aquatic chelonia, disc-shaped shells
Rhynchocephalia
Order containing tuataras
A) Chelonia
B) Rhynchocephalia
C) Squamata
D) Crocodylia
Squamata
Order containing lizards and snakes
A) Chelonia
B) Rhynchocephalia
C) Squamata
D) Crocodylia
Crocodylia
Order containing crocodiles and alligators
A) Chelonia
B) Rhynchocephalia
C) Squamata
D) Crocodylia
Birds
Crocodiles resemble ____ more than other living reptiles