Ehret Dana J, Tennyson Alan J D, Richards Marcus D, Boessenecker Robert W
New Jersey State Museum, Trenton, USA.
Museum of New Zealand Te Papa Tongarewa, Wellington, New Zealand.
J R Soc N Z. 2023 Dec 5;54(5):609-619. doi: 10.1080/03036758.2023.2278730. eCollection 2024.
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.
噬人鲨属（鼠鲨目：鼠鲨科）的化石记录可追溯到渐新世晚期，且分布近乎全球。如今该属仅由一个物种——大白鲨代表。然而，在新生代已识别出多个灭绝物种，包括[物种名1]、[物种名2]和[物种名3]新组合。在此，我们展示了来自新西兰/奥特亚罗瓦南岛/蒂瓦普纳穆的[物种名1]和[物种名2]的首次发现。[物种名1]先前已在北美洲和南美洲、亚洲及澳大利亚的太平洋盆地的中新世晚期沉积物中被报道。而[物种名2]已在北美洲和亚洲的中新世被报道。一枚来自北坎特伯雷莫图瑙海滩推测为中新世晚期的[物种名3]牙齿，以及一枚从南坎特伯雷卡卡胡河采集到的中新世早期上颌牙齿和一枚来自塔斯曼地区大河河口的最早期中新世牙齿被归为[物种名3]。除了是这两个物种在新西兰的首次报道发现外，[物种名1]的牙齿还代表了该分类单元的一些最早发现以及其最南端的发现。
