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Late Jurassic: Early Cretaceous cephalopods of eastern Alexander Island, Antarctica

Late Jurassic: Early Cretaceous cephalopods of eastern Alexander Island, Antarctica
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MESOZOIC CEPHALOPODS have been reported from a number of localities around the Antarctic Peninsula. The stratigraphically oldest occurrence is of an ammonite (provisionally assigned to the genus Epophioceras) and an indeterminate belemnite phragmocone collected from the Lully Foothills of central Alexander Island, which were dated as early Jurassic, possibly Sinemurian (Thomson and Tranter 1986). The youngest faunas are from the James Ross and Seymour islands region, where a rich Lower to Upper Cretaceous (?Aptian-Maastrichtian) ammonite and belemnite assemblage has been described (Thomson 1984; Doyle 1985A, 1987; Macellari 1986; see also Feldmann and W o o d b u r n e 1988). However, important Antarctic cephalopod localities of late Jurassic-early Cretaceous age are known. The most diverse and well-preserved cephalopod faunas of this age are to be found along the eastern coast of Alexander Island, and they are the subject of this paper.
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