Rhynchonellata - Orthida - Draboviidae
Full reference: W. F. Rice. 1987. The systematics and biostratigraphy of the Brachiopoda of the Decorah Shale at St. Paul, Minnesota. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 136-166
Belongs to Diorthelasma according to W. F. Rice 1987
Sister taxa: Diorthelasma parvum, Diorthelasma semotum
Type specimen: Its type locality is Decorah Shale at St. Paul, Minnesota, which is in a Rocklandian/Shermanian carbonate shale in the Decorah Shale Formation of Minnesota.
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of United States (10: Illinois, Iowa, Minnesota collections)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.