Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications

A. R. M. Blieck, V. N. Karatajute-Talimaa, and E. Mark-Kurik

2002

Article

Geodiversitas 24(4):805-820

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Taxa discussed in this work:

• Gigantaspis
• Homalaspidella
• Irregulareaspis
• Miltaspis
• Phialaspis
• Protopteraspididae
• Protopteraspis
• Psammosteidae
• Psammosteiformes
• Psammosteus
• Pteraspidida
• Pteraspididae
• Pteraspidiformes
• Putoranaspis
• Tesseraspis
• Tesseraspis mosaica
• Traquairaspis
• Unarkaspis
• Weigeltaspis

Taxonomy:

• Tesseraspis mosaica belongs to Tesseraspis - Karatajuta-Talimaa (1983)
• Traquairaspis belongs to Phialaspis - Tarrant (1991)
• Boothaspis belongs to Cyathaspidida - Blieck et al. (2002)
• Weigeltaspis belongs to Traquairaspidiformes - Blieck et al. (2002)
• Phialaspis belongs to Traquairaspidiformes - Blieck et al. (2002)
• Protopteraspididae belongs to Pteraspidiformes - Blieck et al. (2002)
• Psammolepis belongs to Heterostraci - Blieck et al. (2002)
• Irregulareaspis belongs to Cyathaspidida - Blieck et al. (2002)
• Homalaspidella belongs to Cyathaspidida - Blieck et al. (2002)
• Lepidaspis belongs to Corvaspididae - Blieck et al. (2002)
• Protopteraspis belongs to Pteraspididae - Blieck et al. (2002)
• Pteraspidida belongs to Pteraspidomorphi - Blieck et al. (2002)
• Unarkaspis belongs to Pteraspididae - Blieck et al. (2002)
• Miltaspis belongs to Pteraspididae - Blieck et al. (2002)
• Gigantaspis belongs to Pteraspididae - Blieck et al. (2002)
• Strosipherus belongs to Heterostraci - Blieck et al. (2002)