Genus: Campylodoniscus KUHN, 1961 (nomen dubium)
Etymology: Campylodon and -iscus diminutive ending: “Little Campylodon”.
= Campylodon HUENE, 1929 non CUVIER & VALENCIENNES, 1832
Etymology: Greek, kampylos “bent, crooked”, and Greek, odon, "tooth": “Bent tooth”.

Species: ameghinoi (HUENE, 1929) KUHN, 1961
Etymology: In honor of Ameghino.
= Campylodon ameghinoi HUENE, 1929

Holotype: MACN A-IOR63

Locality: Serra San Bernardo, Chubut Province, Patagonia, Argentina.

Horizon: Formation unknown, ?Bajo Barreal.


Age: Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Fragmentary maxilla with 7 alveoli and tooth.

Note: Found with the type of Loncosaurus argentinus.

Note: Titanosauridae incertae sedis BONAPARTE, 1996