Corystosiren

{{Short description|Extinct genus of mammal}}

{{Automatic taxobox

| fossil_range = early Pliocene

| image = Corystosiren_varguezi,_Nanosiren_garciae.jpg

| image_caption =

| taxon = Corystosiren

| authority = Domning, 1990

| subdivision_ranks = Species

| subdivision =

• C. varguezi Domning, 1990 (type)

}}

Corystosiren is an extinct genus of dugongid sirenian mammal which existed in the waters of the Caribbean Basin during the early Pliocene. Fossils have been found in the Yucatán Peninsula, Mexico, and Florida.D. P. Domning. 1990. Fossil Sirenia of the West Atlantic and Caribbean Region, IV. Corystosiren varguezi, gen. et sp. nov. Journal of Vertebrate Paleontology 10(3):361-371