Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Synonyms: Stegerhynchops, Stegorhynchella Rzhonsnitskaya 1959, Tungussotoechia
Parent taxon: Rhynchotrematinae according to A. Williams et al. 2002
See also Amsden 1983 and Sepkoski 2002
Sister taxa: Hiscobeccus, Otarorhyncha, Pleurocornu, Rhynchotrema, Stegocornu
Subtaxa: none
Type: Stegerhynchus praecursor
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Australia (1 collection), China (1), Kazakhstan (1), Mongolia (1), the Russian Federation (7), Tajikistan (2)
• Whitwellian of Canada (1: Northwest Territories)
• Jaani of Estonia (4)
• Silurian to Devonian of Mauritania (1), Morocco (1)
• Silurian of Argentina (1), Belarus (1), Canada (80: British Columbia, New Brunswick, Northwest Territories, Nunavut, Ontario, Quebec, Yukon, Yukon Territory), China (8), Estonia (21), Latvia (2), Lithuania (2), Mongolia (12), Norway (3), Poland (1), the Russian Federation (21), Spain (2), Sweden (15), Ukraine (5), the United Kingdom (64), United States (68: California, Illinois, Indiana, Maryland, Missouri, New York, Oklahoma, Tennessee, Virginia, West Virginia, Wisconsin), Venezuela (1)
• Ordovician of Norway (2), Sweden (2), United States (7: Illinois, Missouri, Oklahoma)
Total: 338 collections including 381 occurrences
Specimen images are retrieved through the ePANDDA API.
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