Laminae pinnately divided, always with a single central rachis; rachises glabrous; rhizome scales light to dark brown, or castaneous, the margins entire to sparsely denticulate
5 mm, non clathrate, basifixed, the base cordate or lightly so, the margins denticulate
Scales of the petioles and rachises entire, or if denticulate
, hot retrorsely so
pazense, but that species has longer, more creeping rhizomes, paler reddish brown, finely denticulate
rhizome scales, narrower, more lanceolate blade outlines, and at least some bicolorous costal scales.
39 mm; mouth hook (MH) with bifid hook anteriorly, without accessory tooth, posterior margin fused with complex hypostomal-pharyngeal sclerite; ventral arch (VA) beneath and articulated with mouth hook, anterior margin finely denticulate
, lateral edges slightly emerged; pharyngeal sclerite (PS), apex of dorsal cornu very tapered (Dc), ventral cornu (Vc) clear, without window.
The denticles and denticulate
platelets discovered, along with rostral, cephalo-pectoral and lateral scales, give evidence that they come from the anterior part of the body, from the lining of the bucco-pharyngeal and branchial regions (i.
Most Ceratadus specimens from the Aptian/Albian of north Texas belong to a small species that is characterized by distinctive sharp dental crests, denticulate
in unworn tooth plates.
Gill rakers on outer face of first arch slender, denticulate
on posterior margin, rakers much shorter than filament length.
Inflorescence broadly capitate, simple, umbellate, apex nearly flat, sunk in the center of the rosette, 8-9 cm long (excluding the petals), 9-12 mm in diameter, 56 to 65-flowered; floral bracts entire to remotely denticulate
at the apex, green, membranaceous, distinctly nerved, longitudinally sulcate mainly near the apex, sparsely to subdensely white-lepidote outside, glabrous inside, the outer ones resembling the involucral bracts, ecarinate, slightly exceeding the ovary, the inner ones narrowly ovate-lanceolate to sublinear-lanceolate, acuminate, ecarinate or bearing a protruded central nerve and appearing carinate, 45-60 x 8-20 mm, slightly exceeding the ovary.
2F-H) tubular, relatively long, narrow at base and distinctly expanded towards apex; apical part bearing semicircular ribbon-like plate at left side arising from dorsal of aedeagus, apex rounded and slightly broadened, denticulate
along inner and approximately 1/3 of outer margins, near base of plate slightly projected triangularly in lateral view; on right side of aedeagal shaft with pediform flat plate directed anteriorly and also another wingshaped lobe joining pediform plate as triangular flake medially; pediform plate and wing-shaped lobe connect ventrally, both with serrated margins.
The stem ornament, consisting of wings with denticulate
decoration, is in an earlier style, but on original pieces would have been blue rather than red.
In this paper, as in my rejoinder, the term Kimberley point is taken to refer to those points so identified by Akerman and Bindon (1995:92-4)--bifacial points produced by invasive pressure-flaking and with either serrated or denticulate