What group do lungfishes belong to?

class Sarcopterygii
lungfish, (subclass Dipnoi), any member of a group of six species of living air-breathing fishes and several extinct relatives belonging to the class Sarcopterygii and characterized by the possession of either one or two lungs.

Are lungfishes Osteichthyes?

Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, including the presence of lobed fins with a well-developed internal skeleton.

Which two classes are found in Dipnoi?

Specialised characters of dipnoi:  Internal nares, possibly help in breathing through the nose.  Respiration by lungs (modified air bladder) in addition to gill-respiration.  Auricle is partly divided into two and nearly three-chambered heart.

Are known as lungfishes?

the lungfish. The Dipnoi are a group of sarcopterygiian fish, are are commonly known as the lungfish. Their “lung” is a modified swim bladder, which in most fish is used for buoyancy in swimming, but in the lungfish also absorbs oxygen and removes wastes.

Is lungfish a class?

Lobe-finned fishLungfish / Class

Are Dipnoi Osteichthyes?

Living Osteichthyes are divided into three subclasses: Dipnoi, Crossopterygii, and Actinopterygii.

Which class does Protopterus belong?

Lobe-finned fishProtopterus / Class

What is the class of Osteichthyes?

Class – Osteichthyes Class Osteichthyes includes all bony fishes. Like all fishes, Osteichthyes are cold-blooded vertebrates that breathe through gills and use fins for swimming.

Is lungfish an amphibian?

The soft anatomy of living lungfish shares many similarities with that of living amphibians. Many of these similarities are not present in either coelacanths or any members of the other extant bony fish group, the ray-finned fishes.