organisms from the Lower to Middle Cambrian. Their eponymous genus is Halkieria /hælˈkɪəriə/, which has been found on almost every continent in Lower...

Wiwaxia Halkieria...

lophotrochozoans that were potentially related to either lophophorates or mollusks. Halkieria was a bizarre invertebrate that was an early member of the mollusk group...

was formed by combining the names of two members of the proposed group, Halkieria and Wiwaxia. The group was defined as a set of Early to Mid Cambrian animals...

suggested in 2003 that brachiopods had evolved from an ancestor similar to Halkieria, a slug-like Cambrian animal with "chain mail" on its back and a shell...

Namacalathus Yochelsoniella Elements of a scleritome, resembling Halkieria:[clarification needed] Halkieria Probable palaeoscolecid worm sclerites: Palaeoscolex Maikhanella...

certainly belonged to molluscs, while the owners of some "armor plates", Halkieria and Microdictyon, were eventually identified when more complete specimens...

hyolithids. When he later described the first fairly complete specimens of Halkieria, he suggested that these were closely related to Wiwaxia. Nick Butterfield...

Wiwaxia Halkieria...

fragments that once made up the external armor of early animals, such as Halkieria or "scale worms". Fairly complete and assembled sets, which are rare,...