Subclass of Osteichthyes Flashcards

1
Q

What is the subclass with lobed fin fishes (lungfishes & coelacanths?

A

Sarcopterygii

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2
Q

What organisms are in Sarcopterygii?

A

Lungfishes & coelacanths

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3
Q

What type of fishes are in Sarcopterygii

A

lobe-finned fishes

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4
Q

What is the subclass with ray finned fishes

A

Actinopterygii

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5
Q

What separates Sarcopterygii from Actinopterygii

A

-paired fins with muscular lobes
-pneumatic sacs function as lungs

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6
Q

What separates Actinopterygii from Sarcopterygii

A

-paired fins supported by dermal rays
-basal portions of paired fins not muscular
-heterocercal caudal fins
-blind olfactory sacs

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