>

Animal Families & Genera

Dinosaurs | Dinosauria

Dinosaurs are a diverse group of prehistoric reptiles that were the dominant terrestrial animals of the Late Triassic (251.9-201.3 Mya), Jurassic (201.3-145 Mya), and Cretaceous (145-66 Mya) periods. Discovered and studied since the 19th century, dinosaur fossils found around the world have been used by paleontologists to identify over 1,000 different species of dinosaurs.

Dinosaurs are commonly categorized by distinctive traits ranging from variations of bipedal (2 legs) or quadrupedal (4 legs), body armor or feathers, herbivorous or carnivorous, and quick or slow movement speeds. Though dinosaurs mysteriously disappeared 65 million years ago, their legacy continues to be popularized in museums, books, films and television.

Group of scaled front view illustrations of an assortment of different Dinosaur species with unique body shapes and sizes

When did dinosaurs live?

Dinosaurs lived in the Mesozoic Era which took place between 245 and 66 million years ago. The Mesozoic Era is divided into 3 time periods: Triassic (252 to 201 million years ago), Jurassic (201 to 145 million years ago), and Cretaceous (145 to 66 million years ago).

Why were dinosaurs so big?

Paleontologist believe dinosaurs grew so big in order to gain protection from predators, help regulate internal body temperature, and to allow them to reach their source of food. Today, whales are the only animal who are close to the size of dinosaurs.

Where did dinosaurs live?

Dinosaur fossils have been found on every continent, proving that they lived in every environment of the world. During the Triassic period the continents were one supercontinent called Pangea. The continents slowly spread across the world into the arrangement that they are at today.

Links

Wikipedia - Dinosaur

Related Collections

Related Tags

Browse through our curated Dinosaurs Guides for additional categorizations, tips, details, variations, styles, and histories of Dinosaurs. Guides provide additional insights into the unique properties and shared relationships between elements.

9.5’-16.1’ | 2.9-4.9 m

—

3.3’-5.25’ | 1-1.6 m

—

—

26’-43’ | 7.9-13.1 m

—

—

3,300-5,070 lb | 1,497-2,300 kg

—

25-30 years

—

Allosaurus

490.000

160.000

1310.000

2300.000

30.00

199000

7’-8.2’ | 2.15-2.5 m

—

3.4’-4.4’ | 1.05-1.35 m

—

—

30’-33' | 9.14-10 m

—

—

5,700-6,600 lb | 2,585-2,994 kg

—

25-35 years

—

Amargasaurus

250.000

135.000

1000.000

2994.000

35.00

32000

5'6" | 1.67 m

—

—

—

16' | 4.85 m

—

—

—

—

Ankylosaurus

167.000

485.000

66000

17.1’-18.7’ | 5.2-5.7 m

—

6.9’-7.5’ | 2.1-2.3 m

—

—

69’-75’ | 21-23 m

—

—

36,000-49,000 lb | 16,330-22,226 kg

—

70-100 years

—

Apatosaurus

570.000

230.000

2300.000

22226.000

100.00

87000

5.5”-7.1” | 14-18 cm

—

1.4”-2” | 3.5-5 cm

—

—

1.3’-1.6’ | .4-.5 m

—

—

1.8-2.2 lb | .82-1 kg

—

—

Archaeopteryx

18.000

5.000

50.000

1.000

175000

39.4’-45.9’ | 12-14 m

—

12.5’-14.8’ | 3.8-4.5 m

—

—

98’-115’ | 30-35 m

—

—

110,000-220,000 lb | 49,895-99,790 kg

—

35-45 years

—

Argentinosaurus

1400.000

450.000

3500.000

99790.000

45.00

114000

41’-49.2’ | 12.5-15 m (Overall)

—

10.2’-12.5’ | 3.1-3.8 m

—

—

59’-72.2’ | 18-22 m

—

—

62,400-103,400 lb | 28,300-46,900 kg

—

80-100 years

—

Brachiosaurus

1500.000

380.000

2200.000

46900.000

100.00

291000

26.6’-28.9’ | 8.1-8.8 m

—

6.6’-7.4’ | 2-2.25 m

—

—

69’-75’ | 21-23 m

—

—

34,000-50,000 lb | 15,422-22,680 kg

—

80-100 years

—

Brontosaurus

880.000

225.000

2300.000

22680.000

100.00

213000

3’-4.3’ | .9-1.3 m

—

6.3”-10.2” | 16-26 cm

—

—

6.6’-9.8’ | 2-3 m

—

—

33-55 lb | 15-25 kg

—

—

Coelophysis

130.000

26.000

300.000

25.000

22000

15.1’-17.4’ | 4.6-5.3 m

—

3.3’-3.9’ | 1-1.2 m

—

—

30’-33' | 9.14-10 m

—

—

6,000-11,000 lb | 2,722-4,990 kg

—

60-70 years

—

Corythosaurus

530.000

120.000

1000.000

4990.000

70.00

18000

2.8’-4.75’ | .85-1.45 m

—

9.4”-16.5” | 24-42 cm

—

—

9’-16’ | 2.74-4.88 m

—

—

160-220 lb | 73-100 kg

—

—

Deinonychus

145.000

42.000

488.000

100.000

99000

5.7’-7.4’ | 1.75-2.25 m

—

15.75”-23.6” | 40-60 cm

—

—

16’-20’ | 4.88-6.1 m

—

—

650-1,000 lb | 295-454 kg

—

—

Dilophosaurus

225.000

60.000

610.000

454.000

167000

26.6’-28.9’ | 8.1-8.8 m

—

6.1’-6.6’ | 1.85-2 m

—

—

80’-85’ | 24.4-26 m

—

—

60,000-160,000 lb | 27,215-72,575 kg

—

70-80 years

—

Diplodocus

880.000

200.000

2600.000

72575.000

80.00

240000

7.2’-11.2’ | 2.2-3.4 m

—

18.5”-28.3” | 47-72 cm

—

—

13’-20’ | 3.96-6.1 m

—

—

500-970 lb | 227-440 kg

—

10-20 years

—

Gallimimus

340.000

72.000

610.000

440.000

20.00

52000

11.5’-15.75’ | 3.5-4.8 m

—

3.9’-5.25’ | 1.2-1.6 m

—

—

29.5’-39.4’ | 9-12 m

—

—

8,000-11,000 lb | 3,629-4,990 kg

—

25-40 years

—

Iguanodon

480.000

160.000

1200.000

4990.000

40.00

85000

14.4’-19.4’ | 4.4-5.9 m

—

4.6’-6.6’ | 1.4-2 m

—

—

29.5’-39.4’ | 9-12 m

—

—

8,000-11,200 lb | 3,629-5,080 kg

—

25-30 years

—

Lambeosaurus

590.000

200.000

1200.000

5080.000

30.00

13000

8.2’-9.2’ | 2.5-2.8 m

—

3.3’-3.9’ | 1-1.2 m

—

—

26.2’-29.5’ | 8-9 m

—

—

5,600-10,000 lb | 2,540-4,536 kg

—

—

Maiasaura

280.000

120.000

900.000

4536.000

25000

20.3’-37.4’ | 6.2-11.4 m

—

5.25’-9.8’ | 1.6-3 m

—

—

49.2’-85.3’ | 15-26 m

—

—

60,000-176,000 lb | 27,216-79,832 kg

—

35-45 years

—

Mamenchisaurus

1140.000

300.000

2600.000

79832.000

45.00

15000

6.4’-7.1’ | 1.95-2.15 m

—

19.7”-27.6” | 50-70 cm

—

—

11.5’-12.5’ | 3.5-3.8 m

—

—

220-370 lb | 100-168 kg

—

—

Ornithomimus

215.000

70.000

380.000

168.000

11000

4.3’-7.2’ | 1.3-2.2 m

—

19.7”-33.5” | 50-85 cm

—

—

9.8’-16.4’ | 3-5 m

—

—

815-992 lb | 370-450 kg

—

—

Pachycephalosaurus

220.000

85.000

500.000

450.000

101000

14.4’-18.4’ | 4.4-5.6 m

—

3.9’-4.9’ | 1.2-1.5 m

—

—

29.5’-36’ | 9-11 m

—

—

6,000-8,000 lb | 2,722-3,629 kg

—

55-70 years

—

Parasaurolophus

560.000

150.000

1100.000

3629.000

70.00

101000

11.5' | 3.5 m

—

—

—

46' | 14 m

—

—

—

—

Plesiosaurus

350.000

1400.000

14000

19.7”-23.6” | 50-60 cm

—

13.8”-19.7” | 35-50 cm

—

—

4.9’-5.9’ | 1.5-1.8 m

—

—

350-400 lb | 159-181 kg

—

—

Protoceratops

60.000

50.000

180.000

181.000

29000

—

19.5' | 6 m

—

—

6' | 1.83 m

—

—

—

—

Pterodactyl

600.000

183.000

116000

20’-25.6’ | 6.1-7.8 m (Overall)

—

5.25’-6.9’ | 1.6-2.1 m

—

—

46’-59’ | 14-18 m

—

—

14,100-16,300 lb | 6,400-7,400 kg

—

25-30 years

—

Spinosaurus

780.000

210.000

1800.000

7400.000

30.00

507000

10.8’-14.8’ | 3.3-4.5 m (Overall)

—

3.9’-5.9’ | 1.2-1.8 m

—

—

21.3’-30’ | 6.5-9.1 m

—

—

6,800-8,400 lb | 3,100-3,800 kg

—

75-100 years

—

Stegosaurus

450.000

180.000

910.000

3800.000

100.00

392000

7.2’-8.9’ | 2.2-2.7 m

—

3.6’-4.3’ | 1.1-1.3 m

—

—

16.4’-19.7’ | 5-6 m

—

—

5,400-6,000 lb | 2,450-2,722 kg

—

35-45 years

—

Styracosaurus

270.000

130.000

600.000

2722.000

45.00

39000

1.6’-3.3’ | .5-1 m

—

5.9”-11.8” | 15-30 cm

—

—

3.9’-8.2’ | 1.2-2.5 m

—

—

24-49 lb | 11-22 kg

—

—

Thecodontosaurus

100.000

30.000

250.000

22.000

1500

10.8’-12.5’ | 3.3-3.8 m

—

6.6’-7.5’ | 2-2.3 m

—

—

26.2’-29.5’ | 8-9 m

—

—

11,000-19,800 lb | 5,000-9,000 kg

—

40-70 years

—

Triceratops

380.000

230.000

900.000

9000.000

70.00

617000

6.9’-8.2’ | 2.1-2.5 m

—

3.3’-3.9’ | 1-1.2 m

—

—

19.7’-23’ | 6-7 m

—

—

5,600-8,000 lb | 2,540-3,629 kg

—

20-25 years

—

Tuojiangosaurus

250.000

120.000

700.000

3629.000

25.00

4200

15.75’-17.7’ | 4.8-5.4 m

—

5.25’-6.2’ | 1.6-1.9 m

—

—

36’-40’ | 11-12.2 m

—

—

12,600-15,400 lb | 5,7000-7,000 kg

—

20-28 years

—

Tyrannosaurus | T-Rex

540.000

190.000

12200.000

7000.000

28.00

715000

Tyrannosaurus | T-Rex (Tyrannosaurus Rex)

Comparison illustration of the size of a Tyrannosaurus Rex to a person

Tyrannosaurus Rex (Tyrannosaurus rex) existed about 150-68 million years ago in western North America. Its massive body, sharp teeth, claws, and jaws made it fearsome because it produced the strongest bite among all animals. It was a carnivore and bipedal, with large powerful hind limbs and short, less powerful forelimbs. The skull was massive and the tail long and heavy. Evidence shows this large carnivore and land predator was also a scavenger and had a fast growth rate. Researchers also found that Tyrannosaurus had a larger brain, and, therefore, was more intelligent than other dinosaurs.

The Tyrannosaurus Rex had an overall length between 36’-40’ (11-12.2 m), upright standing height of 15.75’-17.7’ (4.8-5.4 m), body width of 5.25’-6.2’ (1.6-1.9 m), and weight from 12,600-15,400 lb (5,7000-7,000 kg). The typical lifespan of the Tyrannosaurus Rex was between 20-28 years.

Side and front drawings of a Tyrannosaurus (T-Rex) with overall dimensions for height, length and width

Tyrannosaurus Rex (T-Rex) was one of the largest predatory dinosaurs that ever existed. Living during the Cretaceous period (68-66 Mya), Tyrannosaurus is a carnivore popularly known for its large skull, ferocious serrated teeth, small useless arms, strong tail, and powerful bipedal legs.

The Tyrannosaurus Rex had an overall length between 36’-40’ (11-12.2 m), upright standing height of 15.75’-17.7’ (4.8-5.4 m), body width of 5.25’-6.2’ (1.6-1.9 m), and weight from 12,600-15,400 lb (5,7000-7,000 kg). The typical lifespan of the Tyrannosaurus Rex was between 20-28 years.

Side and front drawings of a Tyrannosaurus (T-Rex) with overall dimensions for height, length and width

Tyrannosaurus | T-Rex (Tyrannosaurus Rex)

Height:

15.75’-17.7’ | 4.8-5.4 m

Width:

5.25’-6.2’ | 1.6-1.9 m

Length:

36’-40’ | 11-12.2 m

Depth:

Weight:

12,600-15,400 lb | 5,7000-7,000 kg

Area:

Height (Hips): 12’-13’ | 3.7-4 m
Period: Cretaceous (68-66 million years ago)

Scientific Name

Tyrannosaurus Rex

Lifespan

20-28 years

Drawings include:
Tyrannosaurus (T-Rex) side elevation, front, back, plan

Links

Wikipedia - Tyrannosaurus Rex‍

Details & Downloads

Downloads

2D Downloads

3D Downloads

For 3D Downloads, upgrade to a Dimensions Pro Membership

Gallimimus (Gallimimus bullatus)

Size comparison drawing of the Gallimimus compared to a person

The Gallimimus is a theropod dinosaur that lived in modern day Mongolia during the Late Cretaceous period. In the 1960s, several fossils in various stages of growth were discovered by Polish-Mongolian expeditions in the Gobi Desert of Mongolia. With similarities between its neck vertebrae and those of Galliformes, its generic name means ”chicken mimic”. The Gallimimus is the largest known ornithomimid; it would have had feathers, a small and light head with large eyes that faced the sides, and a long snout. As a fleet animal, it used its speed, estimated at 29-34 mph, to escape predators, and it had good vision and intelligence comparable to ratite birds.

The Gallimimus had an overall length between 13’-20’ (3.96-6.1 m), standing height of 7.2’-11.2’ (2.2-3.4 m), body width of 18.5”-28.3” (47-72 cm), and weight from 500-970 lb (227-440 kg). The typical lifespan of the Gallimimus was between 10-20 years.

Dimensioned series of illustrations of the Gallimimus

The Gallimimus is a theropod dinosaur that lived in modern day Mongolia during the Late Cretaceous period. In the 1960s, several fossils in various stages of growth were discovered by Polish-Mongolian expeditions in the Gobi Desert of Mongolia.

The Gallimimus had an overall length between 13’-20’ (3.96-6.1 m), standing height of 7.2’-11.2’ (2.2-3.4 m), body width of 18.5”-28.3” (47-72 cm), and weight from 500-970 lb (227-440 kg). The typical lifespan of the Gallimimus was between 10-20 years.

Dimensioned series of illustrations of the Gallimimus

Gallimimus (Gallimimus bullatus)

Height:

7.2’-11.2’ | 2.2-3.4 m

Width:

18.5”-28.3” | 47-72 cm

Length:

13’-20’ | 3.96-6.1 m

Depth:

Weight:

500-970 lb | 227-440 kg

Area:

Scientific Name

Gallimimus bullatus

Lifespan

10-20 years

Drawings include: 
Gallimimus top view, side

Links

Wikipedia - Gallimimus

Details & Downloads

Downloads

2D Downloads

3D Downloads

For 3D Downloads, upgrade to a Dimensions Pro Membership

Spinosaurus (Spinosaurus aegyptiacus)

Comparison illustration of the size of a Spinosaurus to a person

About 99 million years ago, Spinosaurus (Spinosaurus aegyptiacus) was common in North Africa. Evidence (with the nostrils on top of their snouts and webbed feet) shows that it was terrestrial and semiaquatic, feeding mainly on fish. This dinosaur was first bipedal but later grew to be quadrupedal. It was the largest, longest, and heaviest among carnivorous dinosaurs with a long, low, narrow skull, large, robust forelimbs, and a long tail with neural spines thought to be for intimidating other animals or thermal regulation. It also had crocodile-like teeth and dense bones like those of the manatees.

The Spinosaurus had an overall length between 46’-59’ (14-18 m), overall standing height of 20’-25.6’ (6.1-7.8 m), body width of 5.25’-6.9’ (1.6-2.1 m), and weight from 14,100-16,300 lb (6,400-7,400 kg). The typical lifespan of the Spinosaurus was between 25-30 years.

Collection of drawings of a Spinosaurus from the front and side with dimensions

Spinosaurus was a large carnivorous Cretaceous period (112-93.5 Mya) dinosaur characterized by its large thin back spikes. A giant predator on both land and water, similar to the present day crocodile, fossils prove that the Spinosaurus was as larger or larger than the Tyrannosaurus Rex.

The Spinosaurus had an overall length between 46’-59’ (14-18 m), overall standing height of 20’-25.6’ (6.1-7.8 m), body width of 5.25’-6.9’ (1.6-2.1 m), and weight from 14,100-16,300 lb (6,400-7,400 kg). The typical lifespan of the Spinosaurus was between 25-30 years.

Collection of drawings of a Spinosaurus from the front and side with dimensions

Spinosaurus (Spinosaurus aegyptiacus)

Height:

20’-25.6’ | 6.1-7.8 m (Overall)

Width:

5.25’-6.9’ | 1.6-2.1 m

Length:

46’-59’ | 14-18 m

Depth:

Weight:

14,100-16,300 lb | 6,400-7,400 kg

Area:

Height (Head): 16.5’ | 5 m

Period: Cretaceous (112-93.5 million years ago)

Scientific Name

Spinosaurus aegyptiacus

Lifespan

25-30 years

Drawings include:
Spinosaurus side elevation, front, back, plan

Links

Wikipedia - Spinosaurus

Details & Downloads

Downloads

2D Downloads

3D Downloads

For 3D Downloads, upgrade to a Dimensions Pro Membership

Stegosaurus (Stegosaurus stenops)

Size comparison drawing of the Stegosaurus compared to a person

Stegosaurus (Stegosaurus stenops) would have been easily identified by the distinctive upright kite-shaped armor on their backs and tail with spikes. Its fossils were found in Portugal and the western USA, and it is believed to be an herbivore with four legs. The hind limbs were longer than the forelimbs and the back was round. Generally, it had a heavily built profile with a tail that was held high in the air. The short neck, small head, and shape of forelimbs suggest it ate shrubs or low-lying plant matter. This animal lived about 155 million years ago.

The Stegosaurus had an overall length between 21.3’-30’ (6.5-9.1 m), overall standing height of 10.8’-14.8’ (3.3-4.5 m), body width of 3.9’-5.9’ (1.2-1.8 m), and weight from 6,800-8,400 lb (3,100-3,800 kg). The typical lifespan of the Stegosaurus was between 75-100 years.

Drawing collection illustrating the front and side of a Stegosaurus with overall dimensions

Stegosaurus (Stegosaurus stenops) would have been easily identified by the distinctive upright kite-shaped armor on their backs and tail with spikes. Its fossils were found in Portugal and the western USA, and it is believed to be an herbivore with four legs.

The Stegosaurus had an overall length between 21.3’-30’ (6.5-9.1 m), overall standing height of 10.8’-14.8’ (3.3-4.5 m), body width of 3.9’-5.9’ (1.2-1.8 m), and weight from 6,800-8,400 lb (3,100-3,800 kg). The typical lifespan of the Stegosaurus was between 75-100 years.

Drawing collection illustrating the front and side of a Stegosaurus with overall dimensions

Stegosaurus (Stegosaurus stenops)

Height:

10.8’-14.8’ | 3.3-4.5 m (Overall)

Width:

3.9’-5.9’ | 1.2-1.8 m

Length:

21.3’-30’ | 6.5-9.1 m

Depth:

Weight:

6,800-8,400 lb | 3,100-3,800 kg

Area:

Period: Late Jurassic (155-150 million years ago)

Scientific Name

Stegosaurus stenops

Lifespan

75-100 years

Drawings include:
Stegosaurus side elevation, front, back, plan

Links

Wikipedia - Stegosaurus

Details & Downloads

Downloads

2D Downloads

3D Downloads

For 3D Downloads, upgrade to a Dimensions Pro Membership

Corythosaurus (Corythosaurus casuarius)

Comparison illustration of the size of a Corythosaurus to a person

The Corythosaurus is a hadrosaurid ”duck-billed” dinosaur that lived in the Upper Cretaceous Period. Its name translates to ”helmet lizard” in Greek for its skull with tall crests; the crests are similar to those of the cassowary and a Corinthian helmet. These functioned as a tool in vocalization for the dinosaur. It was preserved with its last meal, conifer needles, seeds, twigs, and fruits, inside the chest cavity. The first Corythosaurus was discovered by Barnum Brown in 1911 in Red Deer River, Alberta, Canada, and the find was notable because impressions of the creature’s skin had also survived.

The Corythosaurus had an overall length between 30’-33' (9.14-10 m), standing height of 15.1’-17.4’ (4.6-5.3 m), body width of 3.3’-3.9’ (1-1.2 m), and weight from 6,000-11,000 lb (2,722-4,990 kg). The typical lifespan of the Corythosaurus was between 60-70 years.

Set of scaled drawings of the Corythosaurus with dimensions

The Corythosaurus is a hadrosaurid ”duck-billed” dinosaur that lived in the Upper Cretaceous Period. Its name translates to ”helmet lizard” in Greek for its skull with tall crests; the crests are similar to those of the cassowary and a Corinthian helmet. These functioned as a tool in vocalization.

The Corythosaurus had an overall length between 30’-33' (9.14-10 m), standing height of 15.1’-17.4’ (4.6-5.3 m), body width of 3.3’-3.9’ (1-1.2 m), and weight from 6,000-11,000 lb (2,722-4,990 kg). The typical lifespan of the Corythosaurus was between 60-70 years.

Set of scaled drawings of the Corythosaurus with dimensions

Corythosaurus (Corythosaurus casuarius)

Height:

15.1’-17.4’ | 4.6-5.3 m

Width:

3.3’-3.9’ | 1-1.2 m

Length:

30’-33' | 9.14-10 m

Depth:

Weight:

6,000-11,000 lb | 2,722-4,990 kg

Area:

Scientific Name

Corythosaurus casuarius

Lifespan

60-70 years

Drawings include: 
Corythosaurus top view, side

Links

Wikipedia - Corythosaurus

Details & Downloads

Downloads

2D Downloads

3D Downloads

For 3D Downloads, upgrade to a Dimensions Pro Membership