Abstract
ABSTRACT The marine waters of present-day Antarctica contain an exceedingly depauperate elasmobranch fauna. Recent investigations into the Eocene marine sediments of the La Meseta Formation of Seymour Island, Antarctic Peninsula yielded 13 fossil sharks new to the Antarctic region. Two, Stegostoma cf. S. fasciatum and Pseudoginglymostoma cf. P. brevicaudatum, were unknown as fossils. Squalus woodburnei, S. weltoni, and Anomotodon multidenticulata are new species. Heptranchias howelli, Centrophorus sp., Deania sp., Dalatias licha, Odontaspis rutoti, O. winkleri, Lamna cf. L. nasus, and Scoliodon sp. are reported in Antarctica for the first time. In addition, the new fossil shark material increases the representation of the four previously known fossil sharks from Seymour Island: Squatina sp., Pristiophorus lanceolatus, Carcharias macrota, and Carcharocles auriculatus.
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