essay about dinosur
Aachenosaurus – actually a piece of petrified wood
Aardonyx
"Abdallahsaurus" – nomen nudum, probably Brachiosaurus or Giraffatitan
Abelisaurus
Abrictosaurus
Abrosaurus
Abydosaurus
Acanthopholis
Achelousaurus
Achillesaurus
Caenagnathus – probable junior synonym of Chirostenotes
Calamosaurus
Calamospondylus Fox, 1866
"Calamospondylus" Lydekker, 1889 – preoccupied name, now known as Calamosaurus
Callovosaurus
LONGEST
The longest dinosaurs were sauropods; they were gigantic, slow-moving, tiny-headed, cow-like plant-eaters from the late Jurassic and the Cretaceous period. They had very long necks which were useful for reaching wide (and tall) swatches of vegetation. The lengthy neck was counterbalanced by a massive tail. These sauropods are the largest land animals ever discovered:
Supersaurus - 134 feet long (41 m)
Argentinosaurus - 115-130 feet long (35-40 m); 80-100 metric tons
Seismosaurus ("Earth-shaking lizard") - 120+ feet long (37 m); +80 tons
Ultrasauros - 100+ feet long (30 m), +80 tons
Diplodocus - grew up to 90 feet long (28 m).
Brachiosaurus - about 85 feet long (26 m), 40 feet tall, and weighed 70-80 tons.
The biggest carnivores were theropods from the Cretaceous period:
Giganotosaurus carolinii - found in Patagonia, Argentina. 47 feet long (14 m), 8 tons in weight, and 12 feet tall (4 m).
Tyrannosaurus rex - found in North America - 40-50 feet long (12-15 m), 6 tons in weight.
Carcharodontosaurus saharicus - (meaning shark-toothed lizard) found in in Morocco, Africa, by Paul Sereno. It was probably about 45 feet long and had 5 inch long teeth. Its skull (5 feet 4 inches) is larger than T. rex's, but it had a tiny brain cavity (half the size of T. rex's).
: Would a dinosaur eat us if it were alive today?
A: If dinosaurs were alive today, some would try to eat us, but most would be plant-eaters. I think we could outsmart the nasty ones and probably outrun most of them!
When dinosaurs came into existence nearly 230m
Aardonyx
"Abdallahsaurus" – nomen nudum, probably Brachiosaurus or Giraffatitan
Abelisaurus
Abrictosaurus
Abrosaurus
Abydosaurus
Acanthopholis
Achelousaurus
Achillesaurus
Caenagnathus – probable junior synonym of Chirostenotes
Calamosaurus
Calamospondylus Fox, 1866
"Calamospondylus" Lydekker, 1889 – preoccupied name, now known as Calamosaurus
Callovosaurus
LONGEST
The longest dinosaurs were sauropods; they were gigantic, slow-moving, tiny-headed, cow-like plant-eaters from the late Jurassic and the Cretaceous period. They had very long necks which were useful for reaching wide (and tall) swatches of vegetation. The lengthy neck was counterbalanced by a massive tail. These sauropods are the largest land animals ever discovered:
Supersaurus - 134 feet long (41 m)
Argentinosaurus - 115-130 feet long (35-40 m); 80-100 metric tons
Seismosaurus ("Earth-shaking lizard") - 120+ feet long (37 m); +80 tons
Ultrasauros - 100+ feet long (30 m), +80 tons
Diplodocus - grew up to 90 feet long (28 m).
Brachiosaurus - about 85 feet long (26 m), 40 feet tall, and weighed 70-80 tons.
The biggest carnivores were theropods from the Cretaceous period:
Giganotosaurus carolinii - found in Patagonia, Argentina. 47 feet long (14 m), 8 tons in weight, and 12 feet tall (4 m).
Tyrannosaurus rex - found in North America - 40-50 feet long (12-15 m), 6 tons in weight.
Carcharodontosaurus saharicus - (meaning shark-toothed lizard) found in in Morocco, Africa, by Paul Sereno. It was probably about 45 feet long and had 5 inch long teeth. Its skull (5 feet 4 inches) is larger than T. rex's, but it had a tiny brain cavity (half the size of T. rex's).
: Would a dinosaur eat us if it were alive today?
A: If dinosaurs were alive today, some would try to eat us, but most would be plant-eaters. I think we could outsmart the nasty ones and probably outrun most of them!
When dinosaurs came into existence nearly 230m