†family Nectocarididae Conway Morris 1976 (arrow worm)
Nectocarididae - Nectocarididae
Parent taxon: Chaetognatha according to J. Vinther et al. 2025
See also Smith and Caron 2010
Sister taxa: Amiskwidae, Eognathacantha, Paucijaculum, Protoconodonta, Protoconodontida, Timorebestia, Titerina
Subtaxa: Nectocaris Nectocotis Nektognathus
Type: Nectocaris
Ecology: nektonic carnivore
Distribution:
• Ordovician of United States (1: New York collection)
• Cambrian of Australia (1), Canada (3: British Columbia), China (7), Greenland (1)
Total: 13 collections each including a single occurrence