Species: testudinimorpha MLYNARSKI, 1972
Etymology: Testudo, most common genus of land tortoises, and Greek, morphe, "shape."

Holotype: ZPal.No.MgCh/72

Locality: Southern Monadnocka, Nemegt Basin, Ömnögov (South Gobi), Mongolia.

Horizon: Lower Nemegt Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material: Fragmentary shell, fragmentary bones of the shoulder girdle and toes of the right fore limb.

Referred material:

Locality: Khulsan, Nemegt basin, Ömnögov (South Gobi), Mongolia.

Horizon: Lower Nemegt Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material:

ZPal.No. MgCh/73: Internal mould with fragmentary plates of, carapace and with the remains of a plasteron.

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Species: neimongolensis BRINKMAN & PENG, 1996
Etymology: The name is derived from Nei Mongol Zizhiqu, the province in which the Bayan Mandahu Locality occurs.

Holotype: IVPP 020788-7

Locality: Nuchidaba locality, about 9 km northwest of Bayan Mandahu, which lies about 45 km north of Urad Houqi, Inner Mongolia (Nei Mongolia), China.

Horizon:

Biostratigraphy: Eberth’s zone 2.

Age: Late Cretaceous.

Material: Back half of shell, carapace preserved from the seventh neural, and plastron preserved posterior to hyoplastron-hypoplastron suture, skull, neck, girdles and limbs preserved within the portion of carapace, hind limbs, and pelvis in articulation except for feet, remainder of skeleton disarticulated.

Referred material:

IVPP 020790-5: Complete plastron, first dorsal vertebra, right first dorsal rib, rib head of first costal, and isolated phalanges and carpals.

IVPP 290690-6: Back end of plasteron and carapace prepared in ventral view, both feet and tail preserved in articulation, scattered dermal ossicles around both feet.

IVPP 020790-4: Posterior three quarters of carapace prepared in dorsal view.

IVPP 130790-1: Posterior lateral edge of carapace prepared in dorsal view.

NMB 2802: Shell, nearly complete except for anterodorsal surface, which has eroded away, skull with lower jaws sitting on visceral surface of anterior lobe of plasteron, skull roof missing.

NMB 4252: Posterior half of carapace, hind limbs preserved in articulation but feet disarticulated and scattered.

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Species: ukhaachelys JOYCE & NORELL, 2005
Etymology: “Ukhaa”, in reference to the fossil locality Ukhaa Tolgod, Mongolia, and Greek, chelys, ‘turtle’.

Holotype: IGM 90/1

Locality: Ukhaa Tolgod, near the salt extraction settlement of Daus, northeastern Nemegt Basin, Gurvan Tes Somon, Ömnögov (South Gobi), Mongolia.

Horizon: Djadokhta Formation or the Barun Goyot Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Incomplete skeleton consistion of partial cranium, peripherals, plastron, and fragmentary other remains of the postcranium.

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Species: dzamynchondi SUKHANOV & NARMANDAKH, 2006
Etymology:

Holotype: PIN 4698-1

Locality: Zamin Khond Locality, Ömnögov (South Gobi), Mongolia.

Horizon: Djadokhta Formation or the Barun Goyot Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Incomplete shell, missing most of central part of carapace, and left half of posterior lobe of plastron.