FIG. 49. — Acanthospina irregulare n. gen., n in Devonian acanthodians from Severnaya Zemlya Archipelago (Russia)
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...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2003
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| Online Access: | https://zenodo.org/record/4665203 https://doi.org/10.5281/zenodo.4665203 |
| Summary: | 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 |
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