Trilobita - Proetida - Rorringtoniidae
Full reference: R. M. Owens and W. Hammann. 1990. Proetide triolobites from the Cystoid Limestone (Ashgill) of NW Spain, and the suprageneric classification of related forms. Palaeontologische Zeitschrift 64(3/4):221-244
Parent taxon: Proetoidea according to J. C. Lamsdell and P. A. Selden 2015
See also Adrain 2011, Adrain and Chatterton 1993, Hahn et al. 1996 and Owens 2004
Sister taxa: Phillipsiidae, Proetidae, Scharyiidae, Tropidocoryphidae, Tropidocoryphidae
Subtaxa: Hanjiangaspis Pseudobirmanites Rorringtonia Rorringtoniinae Solariproetus
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Silurian of Canada (1: Quebec collection), Sweden (1), the United Kingdom (4)
• Ordovician of China (8), Czechia (5), Denmark (1), Ireland (1), Italy (1), Norway (3), Poland (1), Spain (4), Sweden (10), the United Kingdom (8), United States (1: Nevada)
Total: 49 collections including 57 occurrences