The head of Coelophysis is crowned with 2 bony crests that give it its name (2 crest).
Dinosaurs inhabited all continents.
This theropod has only 2 digits on the manus.
Theropods had the largest brain (relative to body size) among dinosaurs.
Allosaurus has a distinctive ridge above and in front of the eyes.
Velociraptor had an elongated skull, a flat nose and long, functional arms.
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Dromaeosaurs have an enlarged second toe-claw on each foot that it used in making slashing attacks.
Coelurosaurs have a greater heightening of the ascending process of the astragalus, a splint of bone that originates at the main articulating joint of the astragalus and covering the lower quarter of the shin (tibia).
The name “Ceratosauria” means horned lizard.
Theropods have solid bones.
To John Ostrom, the anatomy of Deinonychus was one of an agile, active and intelligent hunter, and thus he began a reevaluation of the nature of dinosaur behavior and metabolism that continues to today.
There is some evidence that raptors were pack hunters.
(all of the above.)They have hollow bones. Their tail was stiff and acted as a body balance. They have claws on all fingers and toes. Their teeth (most of them) were generally sharp, large, serrated, and recurved.
which of the following is true about theropods
Tyrannosaurus evolved only a few million years before the extinction of the dinosaurs.
Carcharodontosaurus has extremely long neural spines along the top of the vertebrate of the back, hips, and tail.
Tetanurae were the most primitive theropods.
Dromaeosaurs or raptors diversified during this period.
The signiture characteristic of (blank) is that it has extremely long neural spines (43 cm, 17 inches) along the top of the vertebrate of the back, hips, and tail.
Ornithomimosaurus had no teeth and is known as the “bird mimic lizard.”
The Ghost Ranch video was taken in the quarry where this dinosaur is found.
The Sauropoda were all bipedal herbivores.
The Brachiosauridae have longer forelimbs than hind limbs.
The teeth of Apatosaurus are
Prosauropods and sauropods evolved from a common unknown ancestor.
Diplodocidae had relatively short tails.
This sauropod was the ultimate tree-top browser.
Sauropod feet had big fleshy pads.
None of the above Have massive solid limbs. Most have lightly-built vertebrate with struts and buttresses and pleurocoels. they have 12 or more cervical vertebrate. They have 4 or more sacral vertebrate.
which of the following statements about the sauropoda is false?
The Titanosauridae were more common in the Gondwana (Southern) continents than in the Northern Hemisphere.
The Sauropoda are found on all continents except Antarctica.
Sauropods with a humerus-to-femur ratio of less than one have front limbs longer than hind limbs.
The humerus-to-femur ratio of the Diplodocidae is greater than 1.
The saurodmorpha evolved during the Early Triassic and survived to the end of the Cretaceous.
The maximum number of caudal vertebrae among the Diplodocidae is
The Sauropoda is a small clade of plant-eaters containing no more than 10 genera.
Apatosaurus was formerly known as Brontosaurus (the latter is a jr. synonym.)
apatosaurus (yes: plateosaurus, thecodontosaurus)
Which of these is not considered a prosauropod?
Some sauropods significantly exceeded 100 ft in length.
_______ was a sauropod covered with a protective pavement of globular or button-like plates covering its back.
_________is the only sauropod found in North America above the “Sauropod Hiatus,” an approx. 20-25 million year interval of the Upper Cretaceous without sauropods.
The crests of lambeosaurines varied in species according to age and sex.
Saurolophus and Prosaurolophus are two examples of members of the Hadrosaurinae which includes those hadrosaurids with a fairly flat skull roof or head crest of solid bone.
They have a single row of large teeth on each side of the jaw. (True: They have elongated external nostrils. Some digits had hoof-like pads. They have toothless beaks.)
What is false about hadrosaurs?
which of the following hadrosaurs was named after a Canadian city
stiffen the tail.
Ossified or bony tendons in the tails of many ornithopods served to
All ornithopods were quadrupedal.
The so-called duck-billed hadrosaurs were restricted to the Jurassic Period.
The Iguanoodontia have closely packed batteries of teeth.
Ornithopods are not known to have been herding animals.
Hadrosaurs may have had inflatable air sacs over the flat dorsal portion of the skull surrounding the external nostrils.
Lambeosaurus was a large, duck-billed dinosaur with a bony head crest shaped like a hatchet.
Hadrosaurs are differentiated into 2 subfamilies based upon their skull characteristics, the flat-roofed or solid crested Hadrosaurinae and the hollow-crested Lambeosaurinae.
Ornithopods were remarkably diverse and distributed throughout the world.
Othniela, a small member of the Hypsilophodontidae family of ornithopods, was named in honor of a famous dinosaur paleotologist, being named for the first name of
This genus from the large Euornithopoda clade was bipedal, only 2-5 meters long, and exhibited the specialized chewing arrangement of more advanced ornithopods.
This genus of ornithopods is the type genus of an early family and clade of ornithopods and derives its name from the fact that it has different types of teeth.
which of the following dinosaurs had batteries of large numbers of teeth organized into large rasping surfaces
They had small external nostrils. (True: They have hoof-like tips on their toes. They were robustly built. They have heavy shoulders and forelimbs. They lack premaxillary teeth.)
which statement about the iguandodontia is false?
This member of the Iguanodontia is intermediate in size between Dryosaurus and Iguanodon.
Computer simulations have been made of the sound once produced by the long hollow crest of this hadrosaur.