FIG. 49. — Acanthospina irregulare n. gen., n in Devonian acanthodians from Severnaya Zemlya Archipelago (Russia) ...

• Main Author: Valiukevičius, Juozas
• Format: Still Image
• Language: unknown
• Published: Zenodo 2003
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Pisces awaiting allocation; Acanthospina; Severnaya Zemlya
• Online Access: https://dx.doi.org/10.5281/zenodo.4665202; https://zenodo.org/doi/10.5281/zenodo.4665202

FIG. 49. — Acanthospina irregulare n. gen., n. sp., scale and denticle-scale histology, vertical longitudinal sections, from paratype LIG 35-A-345, Pod"emnaya River, outcrop 67, bed 12, Severnaya Zemlya Formation; A, scale like figured on Fig. 47H, thin section 652; B, magnified left corner of crown of the same section; C-E, monoodontodic denticle-scales, thin sections 649 (C) and 651 (D, E). Abbreviations: avc, ascending vascular canal; bcan, vascular canal piercing base of scale; cbo, cellular bone; gl, growth lamella; lac, lacuna; lsh, longitudinal Sharpey's fibres; oc, osteocyte cavity; op, osteocyte process; rvc, radial vascular canal; stg, Stranggewebe (oriented mesodentine). Scale bars: 0.1 mm. ... : Published as part of Valiukevičius, Juozas, 2003, Devonian acanthodians from Severnaya Zemlya Archipelago (Russia), pp. 131-204 in Geodiversitas 25 (1) on page 192, DOI: 10.5281/zenodo.4665088 ...