question

Swimming propulsion of plesiosaurs was provided by the _______

answer

Giant paddles

question

True/False: The first ichthyosaurs appeared during the Middle Triassic

answer

False

question

True/False: Plesiosaurs evolved during the Late Triassic and became extinct at the end of the Cretaceous (same time as dinosaurs)

answer

True

question

True/False: Ichthyosaurs have short arms with strong limb girdles used for swimming

answer

False

question

True/False: 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.

answer

True

question

True/False: Fossil evidence reveals that some mosasaurs were cannibalistic.

answer

True

question

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

answer

Elasmosaurus

question

All plesiosaurs had _________, or belly ribs, that interlocked and supported the belly

answer

gastralia

question

Propulsion of mosasaurs through the water was accomplished by _____

answer

undulation of the eel-like tail

question

The sclerotic ring is a doughnut-shaped bone surrounding the________

answer

Eye

question

True/False: Elasmosaurus had large skulls and short necks.

answer

False

question

True/False: 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.

answer

True

question

The geologic range of mosasaurs is restricted to what period?

answer

Cretaceous

question

True/False: Ichthyosaur fossils have been found on most continents.

answer

True

question

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

answer

Diapsids

question

True/False; Ichthyosaurs were extinct when Mosasaurs evolved

answer

True

question

True/False; The diet of mosasaurs also included a great deal of squid-like cephalopods, particularly of the now extinct ammonites and belemnites

answer

True

question

True/False: Like turtles, ichthyosaurs were egg-layers

answer

False

question

True/False: Ichthyosaurs preceded dinosaurs by some 20-30 million years

answer

True

question

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

answer

Jacobson's organ

question

Ichthyosaurs were extinct when Mosasaurs evolved.

answer

True

question

Ichthyosarus preceded dinosaurs by some 20-30 million years.

answer

True

question

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.

answer

True

question

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.

answer

True

question

The geologic range of mosasaurs is restricted to what period?

answer

Cretaceous

question

Like turtles, ichthyosaurs were egg-layers.

answer

False

question

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

answer

Eye

question

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

answer

False

question

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

answer

Elasmosaurus

question

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

answer

True

question

Propulsion of mosasaurs through the water was accomplished by ____.

answer

Undulation of the eel-like tail

question

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

answer

Jacobson's organ

question

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

answer

Diapsids

question

Fossil evidence reveals that some mosasaurs were cannibalistic.

answer

True

question

Elasmosaurs had large skulls and short necks

answer

False

question

Swimming propulsion of plesiosaurs was provided by the ____.

answer

Giant paddles

question

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

answer

True

question

The first ichthyosaurs appeared during the Middle Triassic.

answer

False

question

Ichthyosaur fossils have been found on most continents.

answer

True

question

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

answer

Gastralia

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

Ichthyosaurs preceded dinosaurs by some 20-30 million years.

question

gastralia

answer

All plesiosaurs had (blank), or belly ribs, that interlocked and supported the belly.

question

false

answer

The first ichthyosaurs appeared during the Mid Triassic

question

eye.

answer

The sclerotic ring is a doughnut-shaped bone surrounding the

question

true

answer

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

question

true

answer

Fossil evidence reveals that some mesosaurs were cannibalistic.

question

giant paddles.

answer

Swimming propulsion of plesiosaurus was provided by the

question

false

answer

Elasmosaurs had large skulls and short necks.

question

false

answer

Like turtles, ichthyosaurs were egg-layers.

question

true

answer

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

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

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

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

Ichthyosaurs were extinct when Mosasaurs evolved.

question

Jacobson's organ

answer

Skulls of some mosasaurs were found with a (blank), 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 (blank), a group including dinosaurs, birds, pterosaurs, lizards, snakes, etc.

question

Cretaceous

answer

The geologic range of mosasaurs is restricted to what period?

Age of Dinosaurs: Topic 35 – Flashcards

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