Genus: Arguimus DASHZEVEG, 1979
Etymology: In reference to the Argui River, Gouchin Us Somon, Mongolia.
= Arguitherium DASHZEVEG, 1994
Etymology: The name is derived from the Argui River near the Khoobur locality, Aryaykher aymak, Gobi Desert, Mongolia and Greek, theron, “beast, mammal”: Argui beast.

Species: khoshajari DASHZEVEG, 1979
Etymology:

Holotype: PSS no. 10-15

Locality: The Valley of Lakes, Höövör (Khovboor), Guchin Us Somon,.Ubur-Khangai County, Aryaykher aymak, Gobi Desert, Mongolia.

Horizon: Höövör (Khovboor) Beds.

Biostratigraphy:

Age: ?Aptian or Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: A fragment of the right lower jaw with p3-m2.

Referred material:

LOPATIN & AVERIANOV, 2006

PIN 3101/364: Right dentary fragment with m1-2 and alveoli for p1-5, and m3.

PIN 3101/400: Left dentary fragment with m1 and alveoli for p2-5, and m2-3.

PIN 3101/106: Right dentary fragment with m1-2 and alveoli for m3-4.

PIN 3101/107: Right dentary fragment with worn m2 and alveoli for m3-4.

PIN 3101/108: Left dentary fragment with m3-4, alveoli for m2, and partial coronoid process.

 

= Arguitherium cromptoni DASHZEVEG, 1994
Etymology: In honor of Professor A. W. Crompton to mark his valuable contribution to Mesozoic mammalian studies.

Holotype: Paleontology and Stratigraphic Section of the Geological Institute of the Mongolian Academy of Sciences, PSS no. 10-31

Locality: The Valley of Lakes, Höövör (Khovboor), Guchin Us Somon,.Ubur-Khangai County, Aryaykher aymak, Gobi Desert, Mongolia.

Horizon: Höövör (Khovboor) Beds.

Biostratigraphy:

Age: ?Aptian or Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Right dentary fragment with p4-5, m1, and alveoli for p1-3, and m2-3..