†family Amiskwidae Walcott 1911 (arrow worm)
Full reference: C. D. Walcott. 1911. Cambrian Geology and Paleontology II: No.5--Middle Cambrian Annelids. Smithsonian Miscellaneous Collections 57(5):109-144
Parent taxon: Chaetognatha according to C. D. Walcott 1911
Sister taxa: Eognathacantha, Nectocarididae, Paucijaculum, Protoconodonta, Protoconodontida, Pseudoconodontida, Timorebestia, Titerina
Subtaxa: Amiskwia
Type: Amiskwia
Ecology: nektonic carnivore
Distribution:
• Cambrian of Canada (1: British Columbia collection), China (1)
Total: 2 collections each including a single occurrence