Final Review Flashcards
EN of Thyreophora?
Dermal Armor
EN of of Stegosaurus?
Plates
EN of Ankylosaurians?
Dorsal Shield
EN of Ankylosaurids?
Horns and Clubbed Tail
EN of Cerapods?
Diastema
Uneven Enamel Thickness
EN of most Ornithopods?
Kinetic Skull
EN of Iguanodon and Hadrosaurids?
No upper front teeth
EN of Hadrosaurids?
Dental Battery
Large Nasal passages
EN of Margin Heads?
Shelf along back of skull
EN of Ceratopsians?
Rostral Bone
EN of Protoceratopsids and Ceratopsids?
Dental Batteries
Frill
EN of Ceratopsids?
Horns
EN of Saurushcia?
Neck vertebrae lengthened
EN of Sauropodomorphs?
Long neck (at least 10 vertebrae) Small heads
EN of Sauropods?
Denser limb bones
Nostrils at top of skull
Necks with at least 12 vertebrae
Even smaller heads
EN of Brachiosaurus and Titanosaurus?
Hollow spaces in neck vertebrae
EN of theropods?
Knife-like teeth
Hollow bones
EN of Tetanurans?
Stiff tails
3-digit hands
Complex branching air sacs
EN of Coelurosaurs?
Fused clavicles
Primitive feathers
EN of Ornithomimids?
No teeth
EN of Maniraptors?
Even stiffer tails
Semi-lunate carpal
Bowed Ulna
Reverse pubis
EN of Oviraptorosaurians?
No teeth (later groups)
EN of Avialae and Deininychosaurians?
Asymmetric feathers
EN of Deinonychosaurians?
Large retractable claw
