Dinosaur Diagnosis Flashcards
1
Q
pubis with both anterior and posterior prongs
A
ornithischia
2
Q
occlusal surface more dorsal than the jaw joint
A
ornithopoda
3
Q
osteoderms in rows parallel to the midline on both the lateral and dorsal surfaces of the torso
squat stature
toothless, keratinous premaxilla (beak)
A
thyreophora
4
Q
frill formed by the parietal and squamosals extending back over the rear of the braincase
widely spaced hip sockets
A
Marginocephalia
5
Q
pubis with only the anterior prong
A
saurischia
6
Q
10 or more cervical vertebrae
cervical vertebrae usually very enlongated
large claw on first finger in hand
A
sauropodomorpha
7
Q
most had laterally flattened and serrated teeth
3 functional fingers and toes
abundant skeletal pneumaticity
wishbone (furcula)
intramandibular joint in the lower jaw
A
Theropoda
