noun A type of lobe-finned fish that includes the ancestors of land vertebrates
Crossopterygians have distinctive fin structures that set them apart from other fish species.
Crossopterygians are important in understanding the transition of fish to land-dwelling animals.
Crossopterygians are studied for their unique characteristics and evolutionary history.
Crossopterygians are a group of lobe-finned fishes that are considered to be the ancestors of tetrapods.
In scientific writing, crossopterygian may be used to describe a type of lobe-finned fish that includes both living and extinct species.
Biologists studying evolution and paleontology may use the term crossopterygian to refer to a specific group of fish with unique characteristics.
Paleontologists may use crossopterygian when discussing ancient fish species and their relationships to modern vertebrates.