Rhinconichthys is an extinct genus of bony fish which existed during the Cenomanian stage of the Late Cretaceous.[1]
Along with its close cousins the great-white-shark-sized or larger Bonnerichthys and the immense Leedsichthys, Rhinconichthys forms a line of giant filter-feeding bony pachycormid fish that swam the Jurassic and Cretaceous seas for over 100 million years.
Rhinconichthys was a medium-sized fish. R.uyenoi grew to around 3.4m-4.5mm (11.2feet-14.8feetm) long, while R.purgatoriensis was much smaller, around 2m-2.7mm (07feet-08.9feetm) long.