What structural feature defines the Class Actinopterygii for *Ocyurus chrysurus*?
Answer
The arrangement of the bony rays that support their fins
The Class Actinopterygii, to which the yellowtail snapper belongs, is fundamentally defined by a specific anatomical arrangement concerning its fins. This class comprises the ray-finned fishes, and the definitive characteristic separating them from other groups, such as lobe-finned fishes like coelacanths or tetrapods, is the structural composition of their fins, which are supported by bony rays. This feature dictates its placement within the broader hierarchy of life above the family level.
Related Questions
What is the etymology of *Ocyurus chrysurus*' specific epithet *chrysurus*?What structural feature defines the Class Actinopterygii for *Ocyurus chrysurus*?Membership in Family Lutjanidae differentiates *Ocyurus chrysurus* from which superficially similar group?What characteristic signifies *Ocyurus chrysurus*' placement in Phylum Chordata?What shared evolutionary feature is mentioned regarding the Order Perciformes?What is the northern limit of the documented distribution for the yellowtail snapper?In binomial nomenclature, what specific part is *Ocyurus* in *Ocyurus chrysurus*?What anatomical traits generally characterize members of the Family Lutjanidae?The Order Perciformes is often referred to by what descriptive common term?What highly visible feature gives the yellowtail snapper its common name?