†order Loganiida Turner 1991 (jawless fish)
Parent taxon: Agnatha according to R. J. Aldridge et al. 1996
Sister taxa: Muzaffarabadmachli, Myllokunmingiida, Pircanchaspis, Pituriaspida, Saarolepis
Subtaxa: none
Ecology: planktonic suspension feeder
Distribution: there are no occurrences of Loganiida in the database