Reptilia subclasses Flashcards

1
Q

What subclass has turtles and tortoise? meaning?

A

Testudines - tortoise

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2
Q

What are the characteristics of Testudines

A

-body in bony case of dorsal carapace and ventral plastron

-jaw with horny beak instead of teeth

-vertebrae & ribs fused to overlying carapace

-neck retractable

-tongue not extensible

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3
Q

What organisms are in Testudines

A

turtles & tortoise

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4
Q

What subclass has snakes, lizards, and worm lizards? Meaning?

A

Squamata - scale to bear

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5
Q

What are the characteristics of Squamata

A

-skin (that are shed) of horny epidermal scale or plates
-paired copulatory organs

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6
Q

What organisms are in Squamata

A

snakes, lizards, and worm lizards

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7
Q

What is the subclass with tuatara? Meaning?

A

Sphenodontida - wedge tooth

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8
Q

What are characteristics of Sphenodontida

A

-primitive skull
-vertebrae biconcave
-median parietal eye present

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9
Q

What organism in Sphenodontida

A

tuatara

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10
Q

What is the subclass with crocodilians? Meaning?

A

Crocodilia - crocodile

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11
Q

What are characteristics of the subclass Crocodilia

A

-skull elongate & massive
-secondary palate present
-terminal nares
-4 chambered heart

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12
Q

What organism is in the subclass Crocodilia

A

crocodilians

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13
Q

Which reptile is the most primitive?

A

Sphenodontida - tuatara

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14
Q

What is the most advanced reptile?

A

Crocodilia - crocodile

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