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IGUANODON
INDOSAURUS
INDOSUCHUS
INGENIA
ISCHISAURUS
ITEMIRUS
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IGUANODON
Pronunciation: ig-WAN-oh-don 
Translation: Iguana-tooth
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Iguanodontidae
Height: 16 feet (4.9 meters)
Length: 26 feet (7.9 meters)
Weight: 10,000 pounds (4,536 kg)
Period: Early Cretaceous
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Notes: Iguanodon is one first dinosaurs to be named and described,
the other two being Megalosaurus and Hylaeosaurus. It received
its name from the fact that it had teeth resembling those of modern
Iguana lizards, although much larger. Iguanodon sported a spiked
thumb on each hand, and it is thought that the spike served as a
weapon of defense. Several dozen specimens were discovered together
in Belgium, suggesting that these dinosaurs traveled in herds. Foot
prints of Iguanodon have been found from England to Spitzbergen to
north of the Arctic Circle.
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INDOSAURUS
Pronunciation: in-doe-SAWR-us
Translation: Indian Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Abelisauridae (not confirmed)
Height: 20 feet (6.1 meters)
Length: 36 feet (11 meters)
Weight:
Period: Late Cretaceous
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Notes: Fragmentary remains, including a massive, thick braincase,
were found in central India.
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INDOSUCHUS
Pronunciation: in-doe-SOOK-us
Translation: Indian Crocodile
Also known as:
Description:
Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Abelisauridae (not confirmed)
Height: 16 feet (4.9 meters)
Length: 32 feet (9.8 meters)
Weight:
Period: Late Cretaceous
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Notes: Fragmentary remains were found in central India.
This dinosaur resembled Tyrannosaurus but was smaller
and more primitive, with shorter, sharply tapered teeth.
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INGENIA
Pronunciation: in-JEEN-ee-ah
Translation: Ingenia (Mongolia) Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Micro-order: Maniraptora (of the microorder Coelurosauria)
Superfamily: Oviraptorosauria
Family: Oviraptoridae
Height: 2 feet (0.6 meters)
Length: 4.6 feet (1.4 meters)
Weight: 80 pounds (36.3 kg)
Period: Late Cretaceous
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Notes: Ingenia was a small, delicately built predator with a toothless
jaw and a beak like other members of the oviraptorid family.Discovered
in Mongolia, oviraptorids are very rare in North America but in the
Western Gobi they are one of the most common dinosaurs found.
The fact that its hands were more powerfully built than those of other
oviraptorids suggest that it may have had the ability to grasp a greater
variety of foods than other small, toothless carnivores of its time.
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ISCHISAURUS
Pronunciation: ISH-ee-SAWR-us
Translation: Ischigualasto
(a rock formation) Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Herrerasauridae
Height: 4 feet (1.2 meters)
Length: 6.8 feet (2.1 meters)
Weight: Period: Late Triassic
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Notes: One of the earliest of dinosaurs, Ischisaurus lived in northwest
Argentina and resembled Herrerasaurus. There is speculation that
Ischisaurus may actually be the same genus as Herrerasaurus.
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ITEMIRUS
Pronunciation: eye-TIM-ih-rus
Translation: Itemri (Mongolian site) Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Family:
Height:
Length:
Weight:
Period: Late Cretaceous
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Notes: Fragmentary remains of the skull were discovered in Mongolia.
The size of the semicircular canals (which are responsible for balance)
suggest that Itemirus and other bipeds may have used their ears more
for balance than for hearing. Some features on the remains point to
both dromaeosaurids and tyrannosaurids.
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