Strophomenata - Productida - Productidae
Parent taxon: Buxtoniinae according to A. Williams et al. 2000
Sister taxon: Buxtoniini
Subtaxa: Acanthocosta Brasilioproductus Marginatia Paleolibys Peniculauris Piloricilla Scissicosta Spinifrons Squamaria Tolmatchoffia Tomilia Tomiproductus Umboanctus Xinshaoproductus
Type: Tolmatchoffia
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Permian of China (1 collection), Guatemala (1), Japan (1), Malaysia (1), Mexico (2), the Russian Federation (1), Thailand (3), United States (270: Arizona, California, Montana, Nevada, New Mexico, Texas, Utah), Venezuela (7)
• Carboniferous of Australia (22), Brazil (1), Canada (30: Alberta), China (2), Iran (2), Libya (3), the United Kingdom (1), United States (44: California, Indiana, Iowa, Kentucky, Missouri, Nevada, Oklahoma, Tennessee, Texas)
Total: 392 collections including 409 occurrences