the new genus Paraconcavistylon was erected with "C." wehrii as the type species. Paraconcavistylon wehrii is one of between three and four trochodendraceae species that have been described from the Klondike Mountain Formation. Broadly circumscribed three other species have been identified at Republic, Pentacentron sternhartae, Tetracentron hopkinsii, and Trochodendron nastae. Additionally the species Trochodendron drachukii is known from related Kamloops group shales at the McAbee Fossil Beds near Cache Creek, British Columbia. Manchester et al. 2018B noted that Tr. drachukii is likely the fruits of Tr. nastae, while Pe. sternhartae are likely the fruits of Te. hopkinsii. If fossils of the fruits and foliage in attachment are found, that would bring the species count down to three whole plant taxa. Description The fruiting bodies of Paraconcavistylon wehrii are simple racemes that taper from a wide base down to a tip under wide, with lengths of up to and over . Fruit capsules are born on pedicels which curve upwards towards the raceme apex in a helical pattern and the longest preserved raceme has 33 attached fruits, though the specimen is missing both basal and apical sections. Given the length of the racemes, they likely hung down like a pendulum, with the fruits pointing downwards. Each of the smooth teardrop shaped fruits is between wide by tall. They have a slight thickening in the basal area where a ring of perianth scars encircling the connection with the pedicel is, but are widest near the fruit apex. Between four and six long persistent styles are arranged just below the midpoint of the capsules and curving upwards towards the capsule apex. At the base of each style are swollen elliptical bulges that likely were nectaries. The fruits opened at the apex, with a four to six rayed star pattern formed by the dehiscence splits which run from just above the styles to the fruit apex where they join together. P. wehrii twigs have alternating leaves with terminal and axillary buds. The raceme is born from a fork of the twig and leaf, as are the pointed buds. Typically the axillary buds are around long by while the terminal buds are larger at long by . Encircling the twig are between five and eight distinct terminal bud scars. The leaves have a narrow base connecting to the long petioles. They have regularly spaced teeth along the margin that are rounded and bearing glands, and