Triarthrus
Triarthrus beckii
MUGM 28296
scale bar 4mm
Triarthrus beckii
SMH collection
Species
Triarthrus beckii (Green)
Occurrence: Fulton, Southgate
Reference: Ross, 1979; Ludvigsen and Tuffnell, 1983; Kim et al, 2009
Type-Cincinnatian Triarthrus previously assigned to T. eatoni (Hall) were recently assigned to T. beckii by Kim et al., 2009
Triarthrus spinosus Billings
Occurrence: Kope
Reference: Ludvigsen and Tuffnell, 1983; Babcock, 1996
Distinguished from T. eatoni by long spines on the occipital ring, the genal angles, and the 8th, 9th, and 10th thoracic segments
