LABOCANIA
LAMBEOSAURUS
LAPLATASAURUS
LAPPARENTOSAURUS
LEAELLYNASAURA
LEPTOCERATOPS
LESOTHOSAURUS
LEXOVISAURUS
LILIENSTERNUS
LOPHORHOTHON
LORICOSAURUS
LUFENGOSAURUS
LUKOUSAURUS
LYCORHINUS
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LABOCANIA
Pronunciation: lay-bo-KAY-nee-uh 
Translation: Named for a rock formation, La Bocana
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Tetanurae
Family:
Height: 16 feet (4.9 meters)
Length: 30 feet (9.1 meters)
Weight:
Period: Late Cretaceous
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Notes: Labocania lived in Baja California and was probably
related to the Tyrannosaurus rex. Though not as tall or
long as Tyrannosaurus, its head appears to have been larger
and its thicker. Labocania appears to have been a ferocious
predator with sharp, serrated teeth. Like Tyrannosaurus rex,
Labocania was possibly capable of bursts of speed in excess
of 25 mph (40 km/h) for short distances.
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LAMBEOSAURUS
Pronunciation: LAM-be-uh-SAWR-us
Translation: Lambe's Lizard
Also known as:
Description: Herbivore, Bipedal, semi Quadrupedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height: 20 feet (6.1 meters)
Length: 40 feet (12.2 meters)
Weight: 14,000 pounds (6,350 kg)
Period: Late Cretaceous
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Notes: Abundant Lambeosaurus remains have been discovered
in Montana, Mexico, and Alberta, Canada. It is one of the few
dinosaurs that left behind fossilized skin casts, which clearly
indicated it's skin had a pebbly texture. Resembling Corythosaurus,
Lambeosaurus' nostrils extended up from the snout and through its
hollow crest. It was one of the largest hadrosaurs.
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LAPLATASAURUS
Pronunciation: lah-PLAH-tuh-SAWR-us
Translation: La Plata (La Plata, Argentina) Lizard
Also known as:
Description: Herbivore,y Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Titanosauridae
Height: 30 feet (9.1 meters)
Length: 65 feet (19.8 meters)
Weight:
Period: Late Cretaceous
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Notes: Discovered in Argentina, this huge dinosaur had hardened
areas (most likely bony plates) in its skin for protection.
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LAPPARENTOSAURUS
Pronunciation: LAP-uh-REN-tuh-SAWR-us
Translation: Lapparent's Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Brachiosauridae
Height: 2.5 feet (0.8 meters)
Length: 6 feet (1.8 meters)
Weight:
Period: Middle Jurassic
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Notes: It is likely that this sauropod is closely related to the
better-known Brachiosaurus. Its vertebrae appear to be more
primitive than other brachiosaurids.
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LEAELLYNASAURA
Pronunciation: lee-ELL-in-ah-SAWR-ah
Translation: Leaellyn's Lizard
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Family: Hypsilophodontidae
Height:
Length: 6.5 feet - 10 feet (2 - 3 meters)
Weight:
Period: Early Cretaceous
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Notes: Found in Australia, Leaellynasaura is known from
fragmentary remains: parts of a brain endocast, limbs, teeth,
and pieces of skull. Its large eye sockets suggest that it had
keen eyesight.
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LEPTOCERATOPS
Pronunciation: lep-toe-SAIR-uh-tops
Translation: Slim Horned Face
Also known as:
Description: Herbivore, Quadrupedal
Order: Ornithischia
Suborder: Marginocephalia
Infraorder: Ceratopsia
Micro-order Neoceratopsia
Family: Protoceratopsidae
Height: 2.6 feet (0.8 meters)
Length: 6 feet (1.8 meters)
Weight: 120 pounds (54 kg)
Period: Late Cretaceous
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Notes: Found in Alberta, Canada and Wyoming, Leptoceratops
had a parrot-like beak. Typically, ceratopsians would have horns,
but Leptoceratops had only a solid neck frill, which would be
consistent with being more primitive than later ceratopsians.
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LESOTHOSAURUS
Pronunciation: leh-SOTH-uh-SAWR-us
Translation: Lesotho Lizard
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder:
Family:
Height: 18 inches (0.45 meters)
Length: 39 inches (1.0 meters)
Weight: 8 pounds (3.6 kg)
Period: Early Jurassic
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Notes: Discovered in Africa, Lesothosaurus was one of the
earliest and most primitive ornithischians, the bird-hipped,
plant-eating dinosaurs. Small and lightly built, with a head
about four inches long, it had large eyes and a long snout.
A horn-covered beak was probably used as a bill to crop
vegetation. Lesothosaurus was probably an agile, two-legged
runner based on slender, hollow, thin walled bones, a light skull
with many openings, a short neck and forelimbs and the absence
of armor.
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LEXOVISAURUS
Pronunciation: lex-OH-vuh-SAWR-us
Translation: Lexovix Lizard
Also known as:
Description: Herbivore, Quadrupedalry
Order: Ornithischia
Suborder: Thyreophora
Infraorder: Stegosauria
Family: Stegosauridae
Height: 9 feet (2.7 meters)
Length: 17 feet (5.2 meters)
Weight:
Period: Middle Jurassic
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Notes: Named for an ancient tribe in France, Lexovisaurus
had plates and spikes on its back that served to protect it
from predators.
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LILIENSTERNUS
Pronunciation: LIL-ee-en-STUR-nus
Translation: Named after (Ruhle von) Lillenstern
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda
Infraorder: Ceratosauria
Family: Podokesauridae
Height: 9 feet (2.7 meters)
Length: 20 feet (6.1 meters)
Weight:
Period: Late Triassic
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Notes: Originally thought to be of the Halticosauridae,
Liliensternus resembles Dilophosaurus and Coelophysis.
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LOPHORHOTHON
Pronunciation: lo-for-HO-thon
Translation: Crested Nose
Also known as:
Description: Herbivore,Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Hadrosauridae
Height:
Length: 14.8 feet (4.5 meters)
Weight:
Period: Late Cretaceous
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Notes: Fragmentary remains were discovered in Alabama.
Lophorhothon had a toothless beak, batteries of cheek teeth,
and a bony hump above its short snout.
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LORICOSAURUS
Pronunciation: LOR-i-kuh-SAWR-us
Translation: Corselet (or Armored) Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
Family: Titanosauridae
Height:
Length:
Weight:
Period: Late Cretaceous
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Notes: Like many titanosaurids, Loricosaurus' back was embedded
with bony armor plates.
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LUFENGOSAURUS
Pronunciation: loo-FEN-guh-SAWR-us
Translation: Lu-Feng Lizard
Also known as:
Description: Herbivore, Quadrupedal
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Prosauropoda
Family: Plateosauridae
Height: 10 feet (3 meters)
Length: 20 feet (6.1 meters)
Weight:
Period: Early Jurassic
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Notes: Discovered in China, this dinosaur had massive hands,
broad feet, widely spaced teeth, and a short neck. Lufengosaurus
was closely related to Plateosaurus.
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LUKOUSAURUS
Pronunciation: LOO-kuh-SAWR-us
Translation: Lukou Lizard
Also known as:
Description: Carnivore, Bipedal
Order: Saurischia
Suborder: Theropoda (not confirmed)
Family:
Height: 3.5 feet (1.1 meters)
Length: 6.6 feet (2 meters)
Weight:
Period: Early Jurassic
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Notes: Known from fragmentary remains, Lukousaurus
was once thought to be a coelurosaur, but it appears to be
much larger than other coelurosaurians. It may prove not
to be a dinosaur at all.
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LYCORHINUS
Pronunciation: ly-kuh-RYE-nus
Translation: Wolf Snout
Also known as:
Description: Herbivore, Bipedal
Order: Ornithischia
Suborder: Ornithopoda
Family: Heterodontosauridae
Height: 2 feet (0.6 meters)
Length: 4 feet (1.2 meters)
Weight:
Period: Early Jurassic
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Notes: Known from fragmentary remains, Lycorhinus was
discovered in South Africa. It had large canine teeth in both
jaws which might have been used for protection.
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