These vertebrates are characterised by prominent muscular limb buds (lobes) within their fins, which are supported by articulated appendicular skeletons. This is in contrast to the other clade of bony fish, the Actinopterygii, which have only skin-covered bony spines supporting the fins.

The Sarcopterygii, or lobe-finned fishes, is a clade containing the coelacanths, lungfishes, tetrapods, and their fossil relatives, including the osteolepiformes and panderichthyids. They are the sister group to the ray-finned fishes (Actinopterygii), together …

One of the most important characteristics of lobe-finned fish is the lobe in their fins. Unlike other fish, sarcopterygian fish has a cental appendage in their fins containing many bones and muscles. The fins are very flexible and potentially useful for supporting the …

Bony fishes (class Osteichthyes) are divided into the infraclasses Actinopterygii (ray-finned fish), Sarcopterygii (the lobe-finned fish), and Teleostei (from the Greek for ‘complete bone’). Encompassing over 95% of extant fish species, the teleosts comprise more than 26 000 species and represent almost half of all extant vertebrate species.

Sarcopterygii traditionally is a class of vertebrates known as lobe-finned fishes, consisting of living and fossil lungfishes and coelacanths, and related extinct fishes. Members of this group are characterized by lobed paired fins, joined to the body by a single bone (Clark 2002) and two dorsal fins with separate bases.

Early lobe-finned fishes are bony fish with fleshy, lobed, paired fins, which are joined to the body by a single bone. The fins of lobe-finned fishes differ from those of all other fish in that each is borne on a fleshy, lobelike, scaly stalk extending from the body.

2019年5月28日 · There is a type of bony fish called Sarcopterygii or lobe-finned fishes, that possess lobulated caudal and pectorals fins. For this reason they are called legged–fish. Know through this post all about these peculiar creatures.

2024年1月21日 · Class Sarcopterygii — Lobe-fined Fishes (Click on any image for larger version)

2019年1月24日 · Sarcopterygian fishes (“lobe-fins”) are distinctively different from the actinopterygians (“ray-finned” fish) we heard about in the previous chapter. Both of them belong to the Osteichthyes (bony fishes), but the sarcopterygians are characterised by having their fin anchored to the pectoral girdle by a single bone (i.e., humerus ...

Crossopterygians or lobe-finned fish are now represented only by fossils. They were very dominant in Devonian times about 280 million years or more ago and became extinct by the end of Cretaceous. However, several living specimens of a specialised side branch, the Coelacanths, have been found in recent years since 1938 near Comoro Islands ...