Antarctilamna Temporal range:
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Restorations of A. prisca from Middle Devonian of Antarctica and A. ultima from Late Devonian of South Africa | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Order: | †Antarctilamniformes |
Family: | †Antarctilamnidae |
Genus: | †Antarctilamna Young, 1982 |
Species[2] | |
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Antarctilamna is an extinct genus of Devonian cartilaginous fish originally exemplified by Antarctilamna prisca[3] from South Eastern Australia and Antarctica. The latest occurring described species is Antarctilamna ultima[1] from the Waterloo Farm lagerstätte in South Africa. Antarctilamna has robust ctenacanthid-like spines which lack a deep insertion area, and are borne in front of the first dorsal fin; in addition to distinctive diplodont teeth with small intermediate cusps. Antarctilamna-like spines, known from the Bunga Beds locality in Australia have been ascribed to A. prisca.[4][5]