Archive image from page 102 of The Cyathaspididae; a family of. The Cyathaspididae; a family of Silurian and Devonian jawless vertebrates cyathaspididaefa135deni Year: 1964 DENISON: THE CYATHASPIDIDAE 405 Fig. 137. Poraspis polaris, type (from Kiaer and Heintz, 1935); dorsal shield, Paleontologisk Museum, Oslo, D 665 (X 3). A, dorsal view; B, lateral view of right side. orb, orbit; pbl, postbranchial lobe; pm, pineal macula. psala, 20, fig. 5; Holmgren, 1942, K. Svensk. Handl., (3), 20, no. 1, p. 10, fig. 7. Type.—Paleontologisk Museum, Oslo, D 665, dorsal shield (fig. 137)

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Archive image from page 102 of The Cyathaspididae; a family of. The Cyathaspididae; a family of Silurian and Devonian jawless vertebrates cyathaspididaefa135deni Year: 1964 DENISON: THE CYATHASPIDIDAE 405 Fig. 137. Poraspis polaris, type (from Kiaer and Heintz, 1935); dorsal shield, Paleontologisk Museum, Oslo, D 665 (X 3). A, dorsal view; B, lateral view of right side. orb, orbit; pbl, postbranchial lobe; pm, pineal macula. psala, 20, fig. 5; Holmgren, 1942, K. Svensk. Handl., (3), 20, no. 1, p. 10, fig. 7. Type.—Paleontologisk Museum, Oslo, D 665, dorsal shield (fig. 137). Occurrence.—Early Devonian (Gedinnian), Primaeva, Polaris, and Anglaspis horizons, Fraenkelryggen division, Red Bay series, Spitsbergen.

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