Original description: Test large with three rays nearly equal in length. Rays long, moderate in width, subcircular in outline, terminating in large rhombohedral tips with a medium length triradiate spines originating from central portion of tips. Test comprised of nearly uniformly sized sublinearly arranged triangular pore frames on ray shafts and more irregularly arranged polygonal pore frames on tips. Pore frames larger on ray shafts and smaller in central area, all pore frames with nodes at vertices.

Original remarks: Sontonaella snowshoensis, n. sp., di&64256;ers from S. bona, n. sp., by having rays consisting chie&64258;y of triangular pore frames rather than tetragonal pore frames, and by having three ray shafts with three large rhombohedral tips rather than with one rhombohedral tip and two ellipsoidal tips.

Etymology: This species is named for the Snowshoe Creek

near its type locality. Description:

Sontonaella snowshoensis was named by Yeh (1987). Its type specimen is NMNS (000055) and is a 3D body fossil. Its type locality is Suplee-Izee area, OR-589D, which is in a Toarcian marine mudstone/limestone in the Snowshoe Formation of Oregon.

It was recombined as Paronaella snowshoensis by Whalen and Carter (2002) and Gorican et al. (2006).