Fossils (Dinosaurs & Fossils) and Products | Skulls Unlimited International, Inc. 1-800-659-SKULL

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Dinosaurs & Fossils

Fossils

Dinosaur (Greek for "Terrible Lizard") is the name given to large extinct reptiles dominant during the Mesozoic Era, from 230 to 65 million years ago. They are classified in to categories, the orders Saurichia and Ornithischia, within the reptilian subclass Archosauria. Dinosaurs varied greatly in size, ranging in weight from 4 to 6 pounds, in the case of Compsognathus, and up to 160,000 pounds, in the case of Brachiosaurus. Dinosaurs have traditionally been assumed to have been cold-blooded, but in recent years, several different lines of evidence have been interpreted as indicating that dinosaurs may have been warm-blooded like birds and mammals.
The reproductive means of most dinosaurs is unknown; however fossils of dinosaur eggs have been discovered in Brazil, Portugal and Tanzania, as well as the United States.
Dinosaur diets varied greatly. Many, including some of the largest species, were herbivores, consuming vast quantities of vegetation to sustain their large bodies. Some, such as the great Tyrannosaurus rex, were carnivores, preying voraciously on other Dinosaurs and keeping primitive mammals small and insignificant. Although Dinosaurs reigned for around 140 million years, their extinction is theorized to have come suddenly. Many scientists insist that an asteroid that hit the Earth caused an enormous cloud of dust, striking at the food chain. By killing many plants, this asteroid may have doomed the Dinosaurs.

 

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Utahraptor Claw ( )
† Utahraptor Claw
WCR-17
Recreation
$9.00
Therizinosaurus Claw ( )
† Therizinosaurus Claw
WCR-22
Recreation
$34.00
Oviraptor Egg ( )
† Oviraptor Egg
WTR-08
Recreation
$15.00
Ammonite Slices ( )
Ammonite Slices - Small
WTC-507
$24.95
 
Ammonite Slices ( )
Ammonite Slices - Extra Small
WTC-506
$10.95
Trilobite ( )
Trilobite - Large
WTC-101
$16.00
Trilobite ( )
Trilobite - Small
WTC-100
$8.00
Allosaurus (Allosaurus fragilis)
† Allosaurus Skull (Actual Size - 84cm)
WDS-19
Replica
$2,022.00
 
Allosaurus (Allosaurus fragilis)
† Allosaurus Skull (1/4 Size) (22cm
WDS-06
Recreation
$226.00
Allosaurus (Allosaurus fragilis)
† Allosaurus Skull (Actual Size - On Stand)
WDS-19S
Replica
$2,171.00
Allosaurus (Allosaurus fragilis)
† Allosaurus Claw (7 inches)
WCR-16
Recreation
$9.00
Allosaurus (Allosaurus fragilis)
† Allosaurus
W
 
Avimimus (Avimimus portentosus)
† Avimimus Skull (Actual Size)
WDS-66
Recreation
$107.00
Carnotaurus (Carnotaurus sastrei)
† Carnotaurus Skull 1/4 size
WDS-08
Recreation
$312.00
Carnotaurus (Carnotaurus sastrei)
† Carnotaurus Skull 1/8 size (12cm)
WDS-05
Recreation
$48.00
Deinonychus (Actual Size) (Deinonychus antirrhopus)
† Deinonychus (Actual Size) Skull
WDS-24
Recreation
$297.00
 
Deinonychus (Actual Size) (Deinonychus antirrhopus)
† Deinonychus (Actual Size) Claw
WCR-23
Recreation
$9.00
Dimetrodon (Dimetrodon limbatus)
† Dimetrodon Skull
WDS-21
Replica
$650.00
Giganotosaurus (1/9 Actual Size) (Giganotosaurus carolinii)
† Giganotosaurus (1/9 Actual Size) Skull
WDS-04
Recreation
$249.00
Herrerasaurus  (Herrerasaurus ischigualastensis)
† Herrerasaurus Skull (Actual Size)
WDS-09
Recreation
$286.00
 
Megaraptor  (Megaraptor namunhuaiquii)
† Megaraptor Claw
WCR-10
Recreation
$16.00
Tyrannosaurus rex  (Tyrannosaurus rex)
† Tyrannosaurus rex Tooth (5.5 in)
WTR-02
Recreation
$9.00
Tyrannosaurus rex  (Tyrannosaurus rex)
† Tyrannosaurus rex Skull Plaque
WPR-18
Recreation
$9.00
Velociraptor (Velociraptor mongoliensis)
† Velociraptor Skull
WDS-07
Recreation
$143.00
 
Velociraptor (Velociraptor mongoliensis)
† Velociraptor Claw
WCR-20
Recreation
$9.00