In this genus the median lobes are parallel and united by a medial zygosis.
Two-barred macroducts, a bi-lobed or absent second lobe, and gland spines, rather than fringed plates between pygidial lobes, and lobed pre-pygidial abdominal segments are characteristic of Pinnaspis.
In this genus the median lobes are parallel and united by a medial zygosis. Two-barred macroducts, a bi-lobed or absent second lobe, and gland spines, rather than fringed plates between pygidial lobes, and lobed pre-pygidial abdominal segments are characteristic of Pinnaspis.
Pinnaspis