Sprawling

1
Yales Centrosaurus
Sprawling Front End
Fully Erect Rear End
Fully Erect Rhino
Semi-erect Gator
Sprawling Lizard
angle of upper arm bone
The riddle of the mismatched legs. Living
species have a range of postures--
most lizards sprawl, crocodilians have a more
upright, semierect stance, and
most big mammals have a fully erect carriage.
But orthodox dinosaurs--like Yales Centrosaurus-
-had front ends that didnt align with the rear
ends.
2
Posterior
Anterior
Lateral
Medial
Midline
Dorsal
Ventral
Orientation Terms for Skeletal Anatomy
3
Scapula
Coracoid
Proximal
Humerus
Ulna
Distal
Radius
Metacarpals
Phalanges
4
Joint
Joint
Joint
Joint
Kinetic Skulls
5
Dinosaur Skull Anatomy
Postorbital
Parietal
Frontal
Antorbital Fenestra
Maxilary
Orbit
Parietal
Frontal
Nasal
Squamosal
Lachrymal
Premaxilary
Nostril
Nasal
Premaxilary
Jugal
Lateral Fenestra
Quadrate
Jugal
Quadrate
Dentary
Maxillary
Predentary
Dentary
Mandibular Fenestra
Mandible
6
Neural Arch
Centrum
Rhinoceros Vertebra. Nerve cord (arrow) lies in
groove at the top of the centrum and is stradle
d by the neural arch
7
Neck (cervical)
Back (dorsal)
Hip (sacral)
Tail (caudal)
Chevrons
Terms of the Vertebral Column
8
Forelimb Anatomy Terms
Scapula
Coracoid
Humerus
Ulna
Carpal
Metacarpal
Phalanx
Radius
9
Hind-limb Anatomy Terms
Calcaneum
Astragalus
10
Fleshing-out a Dinosaur