Associated skeletal and dental remains of a fossil odontaspidid shark (Elasmobranchii: Lamniformes) from the Middle Eocene Lillebaelt Clay Formation in Denmark

作者：Hansen Bitten Bolvig^*; Cuny Gilles; Rasmussen Bo Wilhelm; Shimada Kenshu; Jacobs Perri; Heilmann Clausen Claus

来源：Bulletin of the Geological Society of Denmark, 2013, 61: 37-46.

• Denmark
• Eocene
• Lamniformes
• shark
• teeth
• vertebrae

A set of associated vertebrae and teeth of a fossil shark was collected from the lower Lutetian (Middle Eocene) part of the Lillebaelt Clay Formation in Denmark. Its vertebral morphology indicates that the individual belongs to an odontaspidid lamniform shark. Although it is here identified as Odontaspididae indet., its tooth morphology suggests that the fossil shark possibly belongs to an undescribed taxon closely allied to Odontaspis or Palaeohypotodus. Based on comparisons with extant Odontaspis, the fossil individual possibly measured about 333 cm in total length. The disarticulated nature of the specimen in a low-energy deposit indicates that the shark carcass must have been lying on the sea floor for some time before its burial. The fossil individual was found along with a possible shed tooth of another indeterminate odontaspidid taxon.

• 出版日期2013