Full reference: H. A. Nicholson. 1872. Ortonia, a New Genus of Fossil Tubicolar Annelides. Geological Magazine 9:447-447
Sister taxon: Cleoprion
• Carboniferous of the United Kingdom (32 collections)
• Mississippian of United States (1: Alaska)
Total: 33 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.