https://www.cambridge.org/core/journals/antarctic-science/article/abs/middle-eocene-basking-shark-lamniformes-cetorhinidae-from-antarctica/5DDB6D72B231CF94B2495397A4319C12
A middle Eocene basking shark (Lamniformes, Cetorhinidae) from Antarctica. - Volume 10 Issue 1
middle eocenebasking sharklamniformescetorhinidaeantarctica