dino primer
ORNITHISCHIA: (bird-hipped) (ORDER)
€ broad range of dinosaurs; all were plant-eaters
€ 5 suborders:
duck-bills: ornithopoda
thick heads: pachycephalosauria
armored (3) : stegosauria; ankylosauria; ceratopsia
ornithopods ('bird feet') (suborder)
€ 60-70 herbivors
€ medium sized & walked on hind legs
€ no teeth at the front of their jaw
€ keens senses = their defensive mechanism: simply avoided predators
SAURITHISCHIA: (lizard-hipped) (ORDER)
- includes all meat eaters; but some were plant eaters, too
- 2 suborders:
- theropoda - small and large meat eaters
- sauropodomorpha - medium and large plant eaters
therapod ('beast foot') (sub order):
- the name of all the small/medium/large sized meat eaters.
- had feet with 3 forward-pointing toes and 1 pointing backward
- had clawed hands
- most were bipedal
- five groups:
- carnosauria; coelurosauria; deinoychosauria; ornithomimosauria;
segnosauria
€ examples: Allosaurus, Tyrannosaurus, and Compsognathus
carnosaurs ('meat-eating' infraorder)
€ giant meat eaters
€ bipedal
€ three families: megalosauridae; spinosauridae; tyrannosauridae
sauropods ('lizard feet') (plant-eating infraorder)
€ all the large (100 ft long x 150 tons); long-necked
€ five groups (based on head; vertebrae; legs)
cetiosaurids; brachiosaurids; camarasaurids; titanosaurids; diplodocids
€ walked on all four legs
€ examples: Diplodocus, Apatosaurus, and Brachiosaurus
archosaurs ('ruling lizards')
€ included dinosaurs, pterosaurs, crocodilians and others.
language arts skills
donts / donta
avi
poda
sauro
carno
ornith
ischia
pachy
cera
cephlo