It lived in coastal and fluvial waters, where it is thought to have fed on either very small prey, or detritus; the small dental plates in its mouth strongly suggest that it was incapable of tackling large prey. The possibility that the plates may have been used to, at times, feed on bivalves has also been muted.
This creature dwelled in coastal and riverine waters, likely consuming either very small organisms or detritus; the minuscule dental plates in its mouth suggest it couldn't tackle large prey. There's also a suggestion that these plates might have occasionally been used to feed on bivalves.