-
Genus Species Notes Image Icriodus I.
cymbiformis I.
expansus I.
latericrescens latericrescens Polygnathus P.
varcus...
-
Blodgett 2014 †Polygnathus
sharyuensis Ovnatanova et al. 2019 †Polygnathus
varcus Stauffer 1940 †Polygnathus
wapanuckensis Harlton 1933 †Polygnathus yakutensis...
- Traverse, Antrim, Dundee,
Alpena and
Norway Point formations.
Polygnathus P.
varcus Also
found in the Traverse, Antrim, Alpena,
Norway Point and
Thunder Bay...
-
Detroit River, Traverse, Antrim, Dundee, Bell and
Alpena formations. P.
varcus Also
found in the Traverse, Antrim, Alpena, Four Mile Dam and
Thunder Bay...
-
raricostatus †Pleurodictyum †Pleurodictyum
cornu †Polygnathus †Polygnathus
varcus †Primitia †Primitia
cincinnatiensis †Primitiella †Primitiella stoningtonensis...
