Callavia

The position of Callavia in relation to other Olenellina has shifted repeatedly over time. Initially it was assigned to the Holmiinae by Pierre Hupé, and was later moved back and forth to the Callaviinae. Lieberman, however, argues Callavia is a basal member of the Judomioidea. • C. bicensis = Elliptocephala walcotti • C. breviloba = Olenellina sp. indet. • C. brevioculata = Nevadella cartlandi • C. burri = Nevadia burri • C. cartlandi = Nevadella cartlandi • C. cobboldi = Nevadella cartlandi • C. eucharis = Nevadella eucharis • C.? nevadensis = Olenellus nevadensis • C. perfecta = Nevadella perfecta == Distribution ==

C. broeggeri is known from the Lower Cambrian of Newfoundland (Brigus Formation, Branchian Series, Conception Bay), Nova Scotia (between Docters Brook and Malignant Brook, northernmost Antigonish Highlands), Canada, and Massachusetts, USA (Weymouth Formation, Pearl street, North Weymouth, and probably Hoppin Hill Reservoir, North Attleboro). C. choffati is known from the Iberian Peninsula in the Elvas Municipality in Portugal and in several localities in the Huelva Province, Spain. C. callavei is found in the Comley Limestone in Shropshire, England. == Ecology ==

C. broeggeri occurs together with the bracihiopods Sunnaginia imbricata and Eccentrotheca kanesia, and the agnostid Serrodiscus bellimarginatus. ==See also==