Elasmobranchii (sharks and rays) >
Lamniformes (Mackerel sharks) >
Lamnidae (Mackerel sharks or white shark)
Etymology: Isurus: isos (Gr.), equal; oura (Gr.), tail, referring to caudal-fin lobes of I. oxyrinchus being equal in length (except that they are not; the upper is clearly longer). (See ETYFish); oxyrinchus: oxys (Gr.), sharp or pointed; rynchus (L.), snout, referring to its pointed snout. (See ETYFish).
More on author: Rafinesque.