Trilobita - Proetida - Proetidae
Alternative combination: Proetus (Gerastos) sugiharensis
Full reference: T. Kobayashi and T. Hamada. 1974. Silurian trilobites of Japan in comparison with Asian, Pacific and other faunas. Palaeontological Society of Japan Special Papers 18:1-155
Belongs to Hedstroemia according to C. P. Stocker et al. 2019
See also Adrain 1997 and Kobayashi and Hamada 1974
Sister taxa: Hedstroemia acer, Hedstroemia channahonensis, Hedstroemia delicatus, Hedstroemia formosa, Hedstroemia kutchini, Hedstroemia pachydermatus, Hedstroemia planedorsata, Hedstroemia sourdoughi
Type specimen: PAt 7375, a pygidium. Its type locality is Loc. 3. Ys 15. Gomi Quarry, which is in a Ludlow reef, buildup or bioherm reef rocks in the Fukata Formation of Japan.
Distribution:
• Silurian of Japan (2 collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.