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31 Cards in this Set
- Front
- Back
Dinosauria |
In-turned femoral Opposable |
|
Saurischia |
Long cervical Thumb claw Long hand (ii longest) |
|
Sauropodomorpha |
Blunt teeth Tiny head |
|
Theropoda |
Flexible jaw 5+ sacral Distal tail |
|
Ceratosauria |
Ilium & ischium fused |
|
Tetanurae |
Maxillary Distal 1/2 Lacks haemal |
|
Allosauria |
Antorbital fenestra expanded upward |
|
Coelurosauria |
Solid sternum Long hands |
|
Arctometatarsalia |
iii tapers to thin wedge Metatarsals long/slender |
|
Ornithomimosauria |
Teeth lost / Beak development All metas long / equal |
|
Tyrannosauridae |
Phalanges of digit iii lost |
|
Maniraptora |
Distal 3/4 Pubis points down and backwards |
|
Avialae |
Enlarged brain Feathers <25 caudal vertebrae Forelimb > hindlimb |
|
Ornithorae |
Fibula shortened Ossified sternum |
|
Ornithoraces |
Metatarsal V lost |
|
Carinatae |
Fusion of metatarsus Pelvic elements fused |
|
Aves |
Teeth lost Humerus with pneumatic fossa/foramen |
|
Neognathe |
Ilium and Ischium fused Beak articulated to skull at mobile point |
|
Paleognathe |
Flexible beak Naris confluent with antorbital fenestrae |
|
Hesperornithoformes |
Clavicles unfused Wings reduced |
|
Ornithischia |
Predentary bone in lower jaw Backturned pubis Blunt teeth |
|
Genosauria |
Teeth inset from margin |
|
Cerapoda |
Asymmetrical distribution of tooth enamel |
|
Marginocephalia |
Expanded shelf at back of skull |
|
Ceratopsia |
Rostral bone in upper jaw to form beak |
|
Pachycephalosauria |
Thickened skull roof |
|
Euornithopoda |
Articulation of skull & Jaw below tooth row |
|
Thyreophora |
Armor of bony scutes Tibia < Femur |
|
Eurypoda |
Anterior portion of ilium shorter than posterior |
|
Stegosauria |
Scutes enlarged to form 2 rows of large plates along vertebral column |
|
Ankylosauria |
Mosaic of interlocking scutes cover body |