Orthograptus
Orthograptus calcaratus
from Ruedemann, 1947
Species
Orthograptus amplexicaulis (Hall)
Occurrence: Utica
Reference: Mitchell and Bergström, 1991; Bergström and Mitchell, 1990
Orthograptus sp. aff. O. amplexicaulis (Hall)
Occurrence: Kope
Reference: Mitchell and Bergström, 1991
Orthograptus amplexicaulis richmondensis (Ruedemann)
Occurrence: Drakes / Bull Fork
Reference: Berry, 1966; Bergström and Mitchell, 1986
Formerly Orthograptus truncatus richmondensis
Orthograptus cf. O. calcaratus basilicus Lapworth
Occurrence: Utica
Reference: Mitchell and Bergström, 1991
Orthograptus quadrimucronatus (Hall, 1865)
Occurrence: Utica, Clays Ferry / Kope, Arnheim
Reference: Bergström and Mitchell, 1986; Mitchell and Bergström, 1991; Bergström and Mitchell, 1990; Bergström, 1996
Includes Diplograptus (Amplexograptus) recurrens richmondensis Ruedemann and Orthograptus truncatus richmondensis
Orthograptus ruedemanni (Gurley)
Occurrence: Utica
Reference: Mitchell and Bergström, 1991; Bergström and Mitchell, 1990
Orthograptus sp. cf. O. ruedemanni (Gurley)
Occurrence: Utica
Reference: Mitchell and Bergström, 1991
Orthograptus socialis?
Occurrence: Drakes / Bull Fork
Reference: Bergström and Mitchell, 1986
