GLY1102 Topic 35, GLY1102 Topic 37, gly 1102 topic 36

question

True
answer

Ichthyosaurs were extinct when Mosasaurs evolved.
question

True
answer

Ichthyosarus preceded dinosaurs by some 20-30 million years.
question

True
answer

As with other plesiosaurs, the Pliosaurs also had large eyes, slightly forward, giving them overlapping fields of vision and the depth perception that comes with it.
question

True
answer

Based upon the size of ichthyosaurs, it is estimated as capable of diving to a depth of 600 meters and coming back to the surface in 20 minutes.
question

Cretaceous
answer

The geologic range of mosasaurs is restricted to what period?
question

False
answer

Like turtles, ichthyosaurs were egg-layers.
question

Eye
answer

The sclerotic ring is a doughnut-shaped bone surrounding the ____.
question

False
answer

Ichthyosaurs have short arms with strong limb girdles used for swimming.
question

Elasmosaurus
answer

Some have likened this marine reptile to being a sauropod of the deep because of its long neck.
question

True
answer

Plesiosaurs evolved during the Late Triassic and became extinct at the end of the Cretaceous (same time as dinosaurs).
question

Undulation of the eel-like tail
answer

Propulsion of mosasaurs through the water was accomplished by ____.
question

Jacobson’s organ
answer

Skulls of some mosasaurs were found with a ____, a scent sniffer used by snakes and lizards.
question

Diapsids
answer

The ancestry of ichthyosaurs is uncertain but they most likely are related to the ____, a group including dinosaurs, birds, pterosaurs, lizards, snakes, etc.
question

True
answer

Fossil evidence reveals that some mosasaurs were cannibalistic.
question

False
answer

Elasmosaurs had large skulls and short necks
question

Giant paddles
answer

Swimming propulsion of plesiosaurs was provided by the ____.
question

True
answer

The diet of mosasaurs also inclined a great deal of squid-like cephalopods, particularly of the now extinct ammonites and belemnites.
question

False
answer

The first ichthyosaurs appeared during the Middle Triassic.
question

True
answer

Ichthyosaur fossils have been found on most continents.
question

Gastralia
answer

All plesiosaurs had ___, or belly ribs, that interlocked and supported the belly.
question

True
answer

The shortcoming of the volcanic hypothesis is that it fails to demonstrate the volume and type of volcanism could have accounted for the impact evidence and there can be little argument that a giant asteroid collided with Earth at precisely the time of the global extinctions.
question

True
answer

The extinction of a species occurs when the last representative of the species is no longer capable of reproducing and dies, leaving only the fossil legacy of its time on Earth.
question

True
answer

The fossil record reveals that the rate of extinction over a geologic history was not a uniform rate.
question

False
answer

The Kuiper Cloud is a large, spherical cloud of comets surround the solar system.
question

False
answer

Once the flash heating of the atmosphere by the terminal Cretaceous impact cooled, atmospheric temperatures would have risen because of the vast amount of particulate matter in the atmosphere blocking solar radiation from reaching the surface.
question

False
answer

The fossil record reveals that extinctions typically involve all forms of life (invertebrates, vertebrates, plants, etc) at similar rates.
question

Arizona
answer

The Barringer Meteor Crater is a young (50,000 years old) crater located in this state.
question

Permian
answer

The greatest extinction (in percent of species extinct) in history occurred at the end of this period.
question

About 2 million years
answer

A rough estimate of the average duration of species prior to extinction is ______.
question

True
answer

The fossil record reveals that most species extinctions were caused by changes in the natural environment.
question

Nebulous coma
answer

The comet head consists of a solid nucleus surround by a _____ up to 1.5 million miles in diameter.
question

Comets
answer

______ are \”dusty iceballs\” of rock, frozen water, and organic compounds.
question

True
answer

All dinosaurs became extinct at the Cretaceous/Tertiary boundary.
question

True
answer

Unlike the moon, Earth has a very active weathering process that over time remove the evidence of impacts, or at least make old ones very hard to recognize.
question

Cretaceous
answer

The most famous of all extinctions occurred at the end of the ____ and marks the boundary between the Mesozoic and Cenozoic eras.
question

Iridium
answer

____ is a rare platinum group metal.
question

True
answer

The Deccan traps of India and Pakistan, southern Brazil, and the western US all show evidence of extensive volcanism at the time of the C/T boundary.
question

True
answer

Microtekites are small, droplet-shaped silica glass cooled form molten material expelled form an impact crater.
question

False
answer

The vast majority of asteroids in our solar system are found in the Asteroid Belt between Jupiter and Pluto.
question

True
answer

In 1981, the geophysicist G. Penfield, found a bow-shaped depression near the Yucatan Peninsula town of Chicxulub tat he thought might be the C/T boundary impact crater.
question

true
answer

All pterosaurs’ skulls have huge eye sockets.
question

true
answer

The 400-500 teeth in each jaw of Pterodaustro may have been used as a sieve for filtering out plankton scooped up into its mouth.
question

true
answer

Most endotherms bear live young.
question

true
answer

Ramphorhyncoids went extinct prior to the great extinction of dinosaurs at the end of the Cretaceous.
question

scapulocoracoid
answer

In most pterosaurs, the scapula and coracoid are fused to form a
question

true
answer

Pterosaurs have a global distribution.
question

false
answer

The pterosaurs diversified into several lineages during the Lower Triassic.
question

true
answer

Pterosaurs were the first vertebrates to develop flapping flight.
question

false
answer

All pterosaurs lacked teeth.
question

uropagatia
answer

The (blank) was a pterosaur membrane that extended from the fifth toe to the tail along the posterior edge of the leg.
question

true
answer

Only endothermic animals have developed the ability to fly.
question

pterosaurs
answer

Which vertebrate animals were the first to be capable of powered flight?
question

true
answer

The shape of the deltopectoral crest is used to differentiate pterosaur clades.
question

Upper Triassic
answer

The earliest pterosaurs are from the (blank) of Italy.
question

true
answer

Some Rhamphorhynchus specimens have a membranous tail vane.
question

They were all filter feeders. (True: They are toothless. They are the largest pterosaurs. They exhibit sexual dimorphism. They have global distribution.)
answer

Which statement about pteranodons is false?
question

diversification of marine birds.
answer

A decrease in abundance and diversity of pterosaurs during the Cretaceous, most probably was caused by
question

false
answer

There is no evidence that pterosaurs had body hair.
question

false
answer

Pterosaurs have a small head, relative to body size.
question

false
answer

There is no evidence of sexual dimorphism in pterosaurs.
question

true
answer

Pteranodons are among those pterosaurs exhibiting a number of anatomical differences between the sexes.
question

propatagium
answer

The (blank) is a small membrane spanning the area between the shoulder and the wrist of pterosaurs.
question

patagium.
answer

The main wing membrane of pterosaurs is the
question

Brazil
answer

The pterosaur images in your text reveal that this South American country has a rich fossil record of these winged creatures.
question

deltopectoral crest
answer

The pterosaur humerus has a large (blank), an anterior projection for the anchoring of flight muscles.

Get instant access to
all materials

Become a Member