Sarcopterygii

The Sarcopterygii /ˌsɑːrkɒptəˈrɪi./ or lobe-finned fish (frae Greek σαρξ sarx, flesh, an πτερυξ pteryx, fin) – sometimes considered synonymous wi Crossopterygii ("fringe-finned fish", frae Greek κροσσός krossos, fringe) – constitute a clade (tradeetionally a class or subclass) o the bony fish, tho a strict cladistic view includes the terrestrial vertebrates. The livin sarcopterygians are the coelacanths, lungfish, an the tetrapods.

Lobe-finned fishes
Temporal range: 423–0 Ma[1]
PreЄ
Є
O
S
D
C
P
T
J
Pg
N
Late Silurian tae Recent
Coelacanth
Scientific classification e
Kinrick:Animalia
Phylum:Chordata
Clade:Euteleostomi
Clade:Sarcopterygii
Romer, 1955
Subgroups
  • Guiyu oneiros
  • Actinistia – coelacanths & relatives
  • †Onychodontiformes
  • Rhipidistia
    • Dipnomorpha – lungfish & relatives
    • Tetrapodomorpha – fower-limbed vertebrates & relatives

References