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1. In-turned femoral head
2. Opposable thumb
3. Perforate Acetabulum |
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1. Characteristic Pelvis with back-turned pubis
2. Predentary bone in lower jaw
3. Blunt teeth
4. Ossified tendons along part of vertebral column |
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| Lacks inset toothrows of genasaurian ornithischians |
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Definition
| Teeth inset from margin of jaws (muscular cheeks) |
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1. Armor made of bony scutes that cover back and/or flanks
2. Tibia shorter than femur |
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| The anterior portion of the ilium is much longer than the posterior portion |
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| Scutes form interlocking mosaic that covers most of body |
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| Scutes enlarged to form two rows of large plates extending along vertebral column |
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| Asymmetrical distribution of tooth enamel |
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Definition
| The articulation of the skull and jaw is well below the level of the tooth row |
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| Expanded shelf at back of skull |
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Definition
1. Skull roof greatly thickened to form solid "dome" that is usually surrounded by various bumps and tubercles
2. Occipital plate rotated beneath skull |
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| Rostral bone present on upper jaw to form sharp beak |
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