PaleoDB taxon number: 211765
Alternative combination: Architarbus rotundatum
Synonym: Geraphrynus carbonarius Scudder 1884 (taxon 211763)
Full reference: S. H. Scudder. 1868. Supplement to descriptions of articulates. Descriptions of fossil insects found on Mazon Creek, and near Morris, Grundy Co. Ill. Geological Survey of Illinois 3:566-572
- Architarbus rotundatus: Its type locality is Mazon Creek (University of Illinois collection), which is in a Westphalian D deltaic mudstone in the Carbondale Formation of Illinois
- Geraphrynus carbonarius: Its type locality is Mazon Creek, USNM Lacoe Collection, which is in a Westphalian D interdistributary bay mudstone in the Carbondale Formation of Illinois.