Diverse echinoderms indicate a normal range of salinity, and the overall shelly assemblage is not significantly different from the normal shelly fauna expected in open Ordovician waters.[6] The non-mineralized cohort contains a range of forms familiar from the Burgess Shale: Demosponges,[8] lobopods, barnacles, annelids, anomalocaridids (e.g. Aegirocassis),[9] possible halkieriids, marrellomorphs, paleoscolecid worms, naraoiids, skaniids as well as the expected problematica. Other Ordovician oddballs are also present, including mitrates,[10] machaeridia,[11] cheloniellids and horseshoe crabs in abundance.[6]