Helcionelloida - Helcionellida - Stenothecidae
Alternative combination: Mellopegma uslonicum
Full reference: P. Y.u. Parkhaev. 2004. Malacofauna of the Lower Cambrian Bystraya Formation of Eastern Transbaikalia. Paleontological Journal 38(6):590-608
Belongs to Mellopegma according to P. J. Wagner 2023
See also Parkhaev 2004 and Vendrasco et al. 2011
Sister taxa: Mellopegma georginensis, Mellopegma indecora, Mellopegma schizocheras
Type specimen: Its type locality is 7000/71, Uslon Section, which is in a Botomian carbonate limestone in the Bystraya Formation of the Russian Federation
Distribution:
• Cambrian of the Russian Federation (3 collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.