First records of two mackerel shark species ( comb. nov. and ; Lamnidae) from New Zealand.

The fossil record of the genus (Lamniformes: Lamnidae) dates to the late Oligocene and has a near global distribution. Today the genus is represented by a single species, the white shark . However, multiple extinct species are recognised in the Cenozoic including , and comb. nov. Here we present the first occurrences of and from New Zealand/Aotearoa, from the South Island/Te Waipounamu. is previously reported from late Miocene deposits in the Pacific basin of North and South America, Asia, and Australia. Whereas has been reported from the Miocene of North America and Asia. One tooth from is reported from the presumed late Miocene of Motunau Beach, North Canterbury, while one upper early Miocene tooth recovered from the Kakahu River, South Canterbury and an earliest Miocene tooth from the Big River mouth, Tasman District are referred to . In addition to being the first reported occurrences of these two species in New Zealand, the teeth of represent some of the earliest occurrences of the taxon as well as its southernmost occurrence.