Fossilized Hadrosaur Skin Impression

1
Fossilized Hadrosaur Skin Impression
2
Hadrosaur Skin Impression
3
Sinosauropteryx
4
Sinosauropteryx
5
Sinosauropteryx
6
Sinosauropteryx
7
Hadrosaur Skeleton
Hadrosaur Musculature
8
Colbert
Bakker
2
Allosaurus
1
2
Tyrannosaurus
7
5
Apatosaurus
31
25
Diplodocus
11
17
Brachiosaurus
78
40
Corythosaurus
4
3
Stegosaurus
2
3.3
Triceratops
8
5
9
Body Size
Time
Indeterminate Growth
Maturity
Body Size
Time
Time
Determinate Growth
10
1 kg
Placental Mammals
100 g
Precocial Land Birds
Altrical Land Birds
10 g
Reptiles
Growth Rate (per day)
1 g
Fish
0.1 g
0.01 g
Growth Rate Curves
1,000 kg
10 g
1,000 g
10 kg
100 kg
10,000 kg
100 g
Adult Body Weight
11
Feeding Ranges
12
Nests and Eggs - Egg Mountain - Montana
Top Layer
Middle Layer
Bottom Layer
13
Top View
Oblique View
Side View
Orodromeus Clutch from Egg Mountain
14
Maiasaura Nest Reconstruction
15
Early Jurassic Trackways - Massachusetts
0
1
2
3
m
N