Riasanites

{{Short description|Genus of ammonite}}

{{Italic title}}

{{Taxobox

| name = Riasanites

| fossil_range = {{fossil range|Tithonian|Berriasian|ref={{cite web

| last = Sepkoski| first = Jack| title= Sepkoski's Online Genus Database|authorlink =| year = 2002| url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2017-10-16 }}}}

| image =

| regnum = Animalia

| phylum = Mollusca

| classis = Cephalopoda

| subclassis = Ammonoidea

| ordo = Ammonitida

}}

Riasanites is an Upper Jurassic ammonite belonging to the ammonitid.