Helcionelloida - Helcionellida - Stenothecidae
Full reference: B. Runnegar and P.A. Jell. 1976. Australian Middle Cambrian molluscs and their bearing on early molluscan evolution. Alcheringa 1(1/2):109-138
Parent taxon: Stenothecidae according to M. J. Vendrasco et al. 2011
See also Bouchet et al. 2005, Landing et al. 2002, Missarzhevsky 1989, Parkhaev 2002, Parkhaev 2004, Runnegar and Jell 1976, Runnegar and Jell 1980 and Sepkoski 2002
Sister taxa: Acanthotheca, Eurekapegma, Planutenia, Pseudoscenella, Stenotheca, Stenothecinae, Watsonellinae
Subtaxa: Mellopegma georginensis Mellopegma indecora Mellopegma schizocheras Mellopegma uslonica
Ecology: stationary epifaunal suspension feeder
Distribution:
• Solvan of Australia (1 collection)
• Placentian of United States (2: Massachusetts)
• Cambrian of Australia (5), Canada (2: British Columbia, Quebec), China (1), Greenland (1), the Russian Federation (11), the United Kingdom (2), United States (3: New York, Utah)
Total: 28 collections including 29 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.