Tetracus

{{Short description|Extinct genus of mammals}}

{{distinguish|Tetrakis (disambiguation){{!}}Tetrakis}}

{{Automatic taxobox

| fossil_range = {{fossil range|28.4|23.03}}

| taxon = Tetracus

| authority = Aymard 1850

| type_species = †Tetracus nanus

| type_species_authority = Aymard, 1846

}}

Tetracus is an extinct genus of gymnures. Species are from the Oligocene of Belgium and France. Fossils can also be found in the Bouldnor Formation in the Hampshire Basin of southern England.

Species:

• †Tetracus nanus (Aymard, 1846)
• synonym Erinaceus nanus Aymard, 1846
• synonym Camphotherium elegans Filhol, 1883,Description d'un nouveau genre de Rongeurs provenant des Phosphorites du Quercy. H Filhol, Bulletin de la Socíeté philomathique du Paris, series, 1883 Filhol, 1884Observations relatives au Mémoire de M. Cope, intitulé: Relations des Horizons renfermant des débris d'Animaux vertébrés fossiles en Europe et en Amérique. H Filhol, 1884
• synonym Comphotherium elegans Filhol, 1884, Filhol 1885
• synonym Gomphotherium elegans Filhol, 1884 in Schlosser, 1887, p. 140 and 465 and in Lavocat, 1951, p. 14
• synonym Neurogymnurus minor Filhol, 1884
• synonym Necrogymnurus minor in Lavocat, 1951, p. 13
• synonym Tetracus bouti Lavocat, 1951, dans Lavocat, 1951.