FIG. 7. — Octoberaspis ushakovi n. gen., n in Arthropods from the Lower Devonian Severnaya Zemlya Formation of October Revolution Island (Russia)

FIG. 7. — Octoberaspis ushakovi n. gen., n. sp., interpretative drawings of the specimens shown in Fig. 6; A, No. 35/324; B, Nos. 35/336 (holotype) (above) and 35/337 (below); C, No. 35/711; D, No. 35/712. Abbreviations: ap, prosomal appendage; cp, carapace; cr, marginal carapace rim; ep, epimera of pretelsonic segment; ga, genital appendage; gs, genal spine; le, lateral eye tubercle; me, median eye tubercle; ms, metastoma; op, opisthosomal operculae; pra, preabdomen; poa, postabdomen; tb, preabdominal tuberculation; tl, telson, opisthosomal segments numbered. Scale bar: 5 mm.