Decadocrinus

{{Short description|Extinct genus of crinoids}}

{{italic title}}

{{Taxobox

| name = Decadocrinus

| fossil_range = Early Carboniferous

| image = Decadocrinus_crinoid.jpg

| image_caption = Decadocrinus depressus on display at Smithsonian Museum of Natural History

| regnum = Animalia

| phylum = Echinodermata

| subphylum = Crinozoa

| classis = Crinoidea

| subclassis =

| ordo =

| familia =

| genus={{extinct}}Decadocrinus

| genus_authority =

| subdivision_ranks = Species

| subdivision =

}}

Decadocrinus is an extinct genus of crinoids from the Early Carboniferous of Europe and North America.