Rostroconchia - Ribeirioida - Ischyriniidae
Full reference: B. F. Howell and T. Kobayashi. 1936. A new notastracan genus from the Ordovician of Siberia. Annals of the Carnegie Museum 25(1):59-61
Parent taxon: Ischyriniidae according to P. J. Wagner 2023
See also Bouchet et al. 2010, Pojeta and Runnegar 1976 and Sepkoski 2002
Sister taxa: Anisotechnophorus, Beukeria, Eoischyrinia, Ischyrinia, Pauropegma, Pseudotechnophorus
Subtaxa: Tolmachovia andina Tolmachovia babini Tolmachovia belfordi Tolmachovia concentrica Tolmachovia corbetti Tolmachovia crassa Tolmachovia landeyranensis Tolmachovia sublirata
Type: Tolmachovia concentrica
Ecology: stationary semi-infaunal suspension feeder
Distribution:
• Dobrotivian of Spain (1 collection)
• Fennian of France (2)
• Arenig of Argentina (2)
• Ordovician of Australia (1), the Netherlands (1), Portugal (1), the Russian Federation (4), Spain (4)
• Tremadoc of Argentina (1)
• Cambrian of Australia (3)
Total: 20 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.