FIG. 7. — A-M in Asterolepis alticristata n. sp. (Antiarchi) from the Upper Devonian (Frasnian) of Nunavut, Canada, and a report on the antiarch diversity of the Fram Formation

FIG. 7. — A-M, Asterolepidoidei sp. indet. from NV2K17, A, B, NUFV 831, articulated partial cephalic skeleton in dermal (A, photograph; A', labeled illustration) and visceral (B, photograph; B', labeled illustration) views; C, D, NUFV 857, premedian plate in dermal (C) and visceral (D) views; E, F, NUFV 1267, premedian plate in dermal (E) and visceral (F) views; G-I, NUFV 880, nuchal plate in dermal (G), visceral (H), and caudal (I) views; J-L, NUFV 1252, nuchal plate in dermal (J), visceral (K), and caudal (L) views; M, NUFV 808, lateral plate in dermal view; N, cf. Asterolepis sp. indet. from NV2K17, NUFV 852, mixilateral plate in dermal view. Abbreviations: cpl, central pit-line line groove; ifc1, principal section of infraorbital pit-line groove; L, lateral plate; nm, obtected area; Nu, nuchal plate; Pn, paranuchal plate; Pp, postpineal plate. Scale bar: 2 cm.