Description: The holotype (Fig. 5), the only specimen collected,
is 382 mm in overall length, consisting of an elongate
spatulate and feather-like body, 235 mm long attached onto
a dense, rigid, 8.1 mm thick stalk 165 mm in length, ending
in a small basal disc 22 mm in diameter. The stalk, attached
to the abfrontal surface of the body, extends the length of the
body providing its primary support. The body, triangular in
section, with a slightly concave frontal surface, is 16.3 mm
wide and 216 mm long, bearing a complete fringe of ca. 396
marginal filaments 0.69 ± 0.12 (0.5-1.0, n = 26) mm in thickness
and 21.4 ± 5.8 (7.1-32.8, n = 31) mm in length. With
filaments included, the main body is effectively 68.5 mm in
greatest width. Ten additional filaments occurring in a single
transverse series across the frontal body surface appear to be
an irregularity in their distribution