The stumptooth minnow (Stypodon signifer) is an extinct species of freshwater cyprinid fish. It was found only in Mexico.
Sources
- ^ World Conservation Monitoring Centre (2019). "Stypodon signifer". IUCN Red List of Threatened Species. 2019: e.T21120A2774500. doi:10.2305/IUCN.UK.2019-2.RLTS.T21120A2774500.en. Retrieved 16 November 2021.