SAICHANIA
SALTASAURUS
SALTOPUS
SARCOLESTES
SARCOSAURUS
SAUROLOPHUS
SAUROPELTA
SAUROPLITES
SAURORNITHOIDES
SAURORNITHOLESTES
SCELIDOSAURUS
SCUTELLOSAURUS
SECERNOSAURUS
SEGISAURUS
SEGNOSAURUS
SEISMOSAURUS
SHAMOSAURUS
SHANSHANOSAURUS
SHANTUNGOSAURUS
SILVISAURUS
SINOSAURUS
SPINOSAURUS
STAURIKOSAURUS
STEGOCERAS
STEGOSAURUS
STENOPELIX
STOKESOSAURUS
STRUTHIOMIMUS
STRUTHIOSAURUS
STYGIMOLOCH
STYRACOSAURUS
SUPERSAURUS
SYNTARSUS
|
|
SCUTELLOSAURUS
Pronunciation: scoo-TEL-oh-SAWR-us 
Translation: Little Shield Lizard
Also Known As:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Thyreophora (not confirmed)
Family:
Height: 2 feet (0.6 meters)
Length: 4 feet (1.2 meters)
Weight:
Period: Early Jurassic
|
|
Notes: Scutellosaurus was a small, lightly-armored dinosaur
with a tail twice the length of its body and head. It was covered
with hundreds of tiny bony knobs set into its skin.
|
 |
SECERNOSAURUS
Pronunciation: sih-KER-nuh-SAWR-us
Translation: Severed Lizard, or Separate Lizard
Also Known As:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 5.5 feet (1.5 meters)
Length: 9.8 feet (3 meters)
Weight:
Period: Late Cretaceous
|
|
Notes: The second most primitive hadrosaur known, Secernosaurus
was the first to be found in the southern hemisphere.
|
|
SEGISAURUS
Pronunciation: SEG-gee-SAWR-us
Translation: Segi Canyon Lizard
Also Known As:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria (not confirmed)
Family: Segisauridae
Height: 2 feet (0.6 meters)
Length: 4 feet (1.2 meters)
Weight:
Period: Early Jurassic
|
|
Notes: Found in Segi Canyon, Arizona, Segisaurus was a very
small predator. The structure of its legs and tail suggest that it
was very swift.
|
|
SEGNOSAURUS
Pronunciation: SEG-no-SAWR-us
Translation: Slow Lizard
Also Known As:
Description: Herbivore, Bipedal?
Order: Saurischia
Suborder: Theropoda
Infraorder:
Family: Therizinosauridae
Height: 10 feet (3 meters)
Length: 21 feet (6.5 meters)
Weight:
Period: Late Cretaceous
|
|
Notes: Found in Mongolia, Segnosaurus had a hip structure
unlike either the bird-hipped or lizard-hipped dinosaurs. In
addition, although it was an herbivore, it had hands clawed
like those of a carnivore. These characteristics led to the
definition of the segnosaurid family.
|
|
SEISMOSAURUS
Pronunciation: size-muh-SAWR-us
Translation: Earth-Shaking Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Diplodocidae
Height: 84 feet (25.6 meters)
Length: 150 feet (45.7 meters)
Weight: 200,000 pounds (90,720 kg)
Period: Late Jurassic
|
|
Notes: Found in New Mexico, Seismosaurus may prove to be the
longest dinosaur known. While Argentinasaurus was probably
taller and heavier, Seismosaurus was as long as half a football
field. In the absence of good limb bone fossils, some scientists
think that its legs were short, giving rise to its description
as the "dachshund" of giant dinosaurs. Like other
sauropods, Seismosaurus probably used gastroliths to grind its
food after swallowing it.
|
|
SHAMOSAURUS
Pronunciation: SHAM-uh-SAWR-us
Translation: Shamo Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Thyreophora
Infraorder: Ankylosauria
Family: Ankylosauridae
Height:
Length:
Weight:
Period: Early Cretaceous
|
|
Notes: An early Asian armored dinosaur, Shamosaurus had a
clubbed tail and extensive body armor.
|
|
SHANSHANOSAURUS
Pronunciation: shan-SHAN-uh-SAWR-us
Translation: Shanshan Lizard
Also Known As:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Family:
Height: 3.5 feet (1.1 meters)
Length: 8 feet (2.4 meters)
Weight:
Period: Late Cretaceous
|
|
Notes: Found in China, this dinosaur was probably a very agile
and fast runner. Its legs were three times as long as its arms, and
it had a large wedge-shaped head.
|
|
SHANTUNGOSAURUS
Pronunciation: shan-TUNG-o-SAWR-us
Translation: Shantung Lizard
Also Known As:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 25 feet (7.6 meters)
Length: 51 feet (15.5 meters)
Weight: 14,000 pounds (6,350 kg)
Period: Late Cretaceous
|
|
Notes: Found in Shangtung, China, this dinosaur was one
of the largest hadrosaurids. It may have been the largest
animal ever to walk on two legs. It is almost identical to
the Edmontosaurus of North America except for some
features that are related to its size.
|
|
SILVISAURUS
Pronunciation: SIL-vee-SAWR-us
Translation: Forest Lizard
Also Known As:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Thyreophora
Infraorder: Ankylosauria
Family: Nodosauridae
Height: 5 feet (1.5 meters)
Length: 13 feet (4 meters)
Weight:
Period: Early Cretaceous
|
|
Notes: Found in Kansas, Silvisaurus was a nodosaur. It had
bony plates on its back and spikes on its tail and sides. It had
large cheek bones and a relatively long neck.
|
|
SINOSAURUS
Pronunciation: SYE-nuh-SAWR-us
Translation: Eastern Lizard
Also Known As:
Description: Carnivore,Bipedal
Order: Saurischia
Suborder: Theropoda (not confirmed)
Family:
Height:
Length: 8 feet (2.4 meters)
Weight:
Period: Early Jurassic
|
|
Notes: Sinosaurus is known from fragmentary remains found
in Yunan, China.
|
|
SPINOSAURUS
Pronunciation: SPY-nuh-SAWR-us
Translation: Spine Lizard
Also Known As:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Carnosauria
Family: Spinosauridae
Height: 14 feet (4.3 meters)
Length: 40 feet (12.2 meters)
Weight: 14,000 pounds (6,350 kg)
Period: Late Cretaceous
|
|
Notes: Found in Egypt, Spinosaurus may have been the largest
of theropods, larger even than Tyrannosaurus. This evaluation
is based on the fact that the vertebrae of Spinosaurus were
20% larger than those of Tyrannosaurus. Spinosaurus certainly
would have appeared larger, due to the sail-like fold of skin
that 6-foot spines supported. This sail was probably used for
thermal regulation, possibly evidence that not all dinosaurs
were warm-blooded.
|
|
|
