Multicuspidate shark teeth associated with chondrichthyan and acanthodian scales from the Emsian (Devonian) of southern Algeria

作者：Derycke Claire^*; Goujet Daniel

来源：Geodiversitas, 2011, 33(2): 209-226.

DOI：10.5252/g2011n2a1

• Chondrichthyes
• Acanthodii
• teeth
• scales
• Devonian
• Algeria
• south Ahaggar
• new species
• new genus

Previously undescribed Emsian vertebrates from southern Algeria (southern Ahaggar) include a new chondrichthyan Tassiliodus lessardi n. gen., n. sp. with multicuspidate teeth and scales with a distinctive histology. This is the first Emsian chondrichthyan taxon reported from the north-western margin of Gondwana. Rare acanthodian scales are assigned to Milesacanthus cf. ancestralis Burrow, Lelievre & Janjou, 2006, an Emsian species also known from Saudi Arabia, reinforcing the Gondwanan faunal affinity.

• 出版日期2011