Temnocidaris

{{Short description|Extinct genus of sea urchins}}

{{Italic title}}

{{Taxobox

| name = Temnocidaris

| fossil_range = Late Cretaceous-Paleocene

| image = Temnocidaris.jpg

| image_width = 250px

| image_caption = Temnocidaris danica fossil at the Geological Museum, Copenhagen

| regnum = Animalia

| phylum = Echinodermata

| classis = Echinoidea

| subclassis = Euechinoidea

| ordo = Cidaroida

| familia =

| genus = Temnocidaris

| genus_authority =

| subdivision_ranks = Species

| subdivision =

}}

Temnocidaris is an extinct genus of echinoids that lived from the Late Cretaceous to the Paleocene. Its remains have been found in Europe and North America.