FIG. 15. — Thelodus calvus n in Ordovician and Lower Silurian thelodonts from Severnaya Zemlya Archipelago (Russia)

• Main Authors: Märss, Tiiu, Karatajūtē-Talimaa, Valentina
• Format: Other/Unknown Material
• Language: unknown
• Published: 2002
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Pteraspidomorphi; Phlebolepidiformes; Loganelliidae; Thelodus; Severnaya Zemlya; Valentina; October Revolution Island
• Online Access: https://zenodo.org/record/5374775; https://doi.org/10.5281/zenodo.5374775

FIG. 15. — Thelodus calvus n. sp., microstructure of the scales; A, Pi 7631; B, Pi 7632; C, D, Pi 7633; E, Pi 7634; F, Pi 7635; G, Pi 7636; sample MF 46-23, Ushakov River, October Revolution Island, Samojlovich Formation, Wenlock, Lower Silurian. Abbreviations: asp, aspidine "pegs" in the...