Only one species of Elasmobranchii, Ptychodus cyclodontis Mutter, Iturralde-Vinent and Carmona (2005), has been reported so far from the Late Cretaceous of Cuba. Herein we describe the first record of a Maastrichtian Serratolamna serrata (Agassiz, 1843) as well as non-diagnostic remains which include a tooth referred to a lamniform shark and an isolated vertebra of an indeterminate elasmobranch. These fossils expand the temporal distribution of Cretaceous fossil sharks known from Cuba and increase our understanding of the group’s fossil diversity.

中文翻译：

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来自古巴的晚白垩纪鲨鱼，Serratolamna serrata（Agassiz）（Lamniformes，Serratolamnidae）的第一个记录

迄今为止，从古巴晚白垩世至今，仅报道了一种埃拉莫兰奇伊鱼，环纹假单胞菌，伊图尔拉德-维南特和卡莫纳（2005）。在这里，我们描述了Maastrichtian Serratolamna serrata（Agassiz，1843）的第一个记录，以及非诊断性的遗骸，其中包括被称为层状鲨鱼的牙齿和不确定的弹性分支的孤立椎骨。这些化石扩大了从古巴已知的白垩纪化石鲨鱼的时间分布，并增进了我们对该群体化石多样性的了解。