Cardiatherium Ameghino, 1883b

Vucetich, María Guiomar, Deschamps, Cecilia M., Vieytes, Emma Carolina & Montalvo, Claudia I., 2014, Late Miocene capybaras from Argentina: Skull anatomy, taxonomy, evolution, and biochronology, Acta Palaeontologica Polonica 59 (3), pp. 517-535 : 523

Genus Cardiatherium Ameghino, 1883b

Type species: Cardiatherium doeringi Ameghino, 1883b ; Paraná River cliffs, Huayquerian SALMA .

1883 Hydrochoerus ; Ameghino1883a: 104, nec Brisson, 1762.

1883 Cardiatherium ; Ameghino 1883b: 270–274.

1885 Procardiatherium ; Ameghino 1885: 55–59.

1885 Contracavia ; Burmeister 1885: 158–159.

1885 Cardiodon ; Ameghino 1885: 64–65, nec Owen, 1841.

1886 Plexochoerus ; Ameghino1886: 58.

1886 Anchimys ; Ameghino 1886: 71–72.

1891 Eucardiodon ; Ameghino 1891: 247.

1940 Anchimysops ; Kraglievich 1940: 322–323, nec Kraglievich, 1927: 597.

1965 Kiyutherium ; Francis and Mones 1965b: 47.

1991 Anatochoerus ; Vucetich and Mones in Mones, 1991: 32.

Diagnosis.—Medium to large-sized capybaras; cheek teeth with prisms united on the labial side in the upper ones, and on the lingual side in the lowers; M3 with 8 to 10 prisms; rostrum transversely broad in ventral view, with a straight and well-exposed premaxillary-maxillary suture; rostrum anterior to the anterior root of the zygomatic arch as wide or wider than immediately posterior to it.

Geographic and stratigraphic range.—South America; Late Miocene–Early Pliocene.