Definition, Meaning & Synonyms

lobe-finned fish

noun
/ˈloʊb fɪnd fɪʃ/
Definition
Lobe-finned fish are a group of bony fish distinguished by their fleshy, lobed fins that are connected to the body by a single bone.
Examples
  • The coelacanth is a well-known example of a lobe-finned fish.
  • Scientists study lobe-finned fish to understand the evolutionary link between fish and land-dwelling animals.
  • Unlike ray-finned fish, lobe-finned fish have thick, fleshy fins that allow for maneuvering in shallow waters.
Meaning
The term refers to a significant class of fish known for their robust fin structure, which is thought to be an evolutionary precursor to the limbs of tetrapods.
Synonyms
  • Crossopterygii
  • Osteichthyes (general term for bony fish)
  • Fleshy-finned fish