†Leptella (Petroria) (lamp shell)
Strophomenata - Strophomenida - Taffiidae
Alternative spelling: Petroria
Parent taxon: Leptella according to A. Williams et al. 2000
See also Sepkoski 2002
Sister taxa: Leptella (Leptella), Leptella exigua, Leptella grandis, Leptella musculosa, Leptella nevadensis, Leptella pseudoretroflexa, Leptella sarytumensis, Leptella sordida
Subtaxa: Petroria rugosa
Ecology: stationary epifaunal suspension feeder
Distribution:
• Whiterockian of United States (3: Nevada collections)
• Arenig of Argentina (3)
• Ordovician of Argentina (2), Canada (1: British Columbia), China (1)
Total: 10 collections each including a single occurrence