†family Stenothecidae Runnegar and Jell 1980 (mollusk)

Helcionelloida - Helcionellida - Stenothecidae

Synonym: Mellopegmidae Missarzhevsky 1989

Full reference: B. Runnegar and P.A. Jell. 1980. Australian Middle Cambrian molluscs: correction and additions. Alcheringa 4(1/2):111-113

Parent taxon: Yochelcionelloidea according to P. Bouchet et al. 2005

See also Missarzhevsky 1989, Parkhaev 2002, Parkhaev 2004 and Runnegar and Jell 1980

Sister taxa: Rugaeconidae, Trenellidae, Yochelcionellidae

Subtaxa: Acanthotheca Eurekapegma Mellopegma Planutenia Pseudoscenella Stenotheca Stenothecinae Watsonellinae

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Ordovician of South Korea (1 collection)

• Marjumian of United States (1: Utah)

• Cambrian of Antarctica (1), Australia (25), Canada (6: British Columbia, Newfoundland and Labrador, Nova Scotia, Quebec), China (13), Germany (1), Greenland (3), New Zealand (1), Norway (1), the Russian Federation (11), the United Kingdom (2), United States (7: Idaho/ Utah, Massachusetts, New York, Pennsylvania)

Total: 73 collections including 82 occurrences

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