Genus: Xenocretosuchus TATARINOV & MATCHENKO, 1999
Etymology: Greek, xenos, “foregin”, Latin, cretaceous, “Cretaceous” and Greek, suchus, “crocodile”: Foregin cretaceous crocodile.

Species: sibiricus TATARINOV & MATCHENKO, 1999
Etymology: Latin, sibiricus, “Siberian”.
= Tritylodont gen sp indet NOVIKOV, LEBEDEV & ALIFANOV, 1998

Holotype: Paleontological Institute of the Russian Academy of Sciences, No. 4463/2

Locality: Shestakovo Locality, Chebulinskii District, Kermerovo Region, Asian Russia.

Horizon: Shestakovo Formation.

Biostratigraphy:

Age: Upper Aptian Stage (?), Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Right upper cheek tooth.

Referred material:

PM TGU, no 16/2-1: Lower incisor.

PIN no. 4463/4: Lower cheek tooth.

PM TGU no 16/2-2, PIN 4463/3: 2 upper cheek teeth.

 

SKUTSCHANS, 2006

Locality: Sh-1 (Shestakovo 1), 55°54’12”N latitude and 87°57’28”E longitude, Chebula District, Kemerovo Province, Western Siberia, Asian Russia.

Horizon: Ilek Formation.

Biostratigraphy:

Age: Khukhtekian age, Aptian-Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given:

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Species: kolossovi LOPATIN & AGADJANIAN, 2008
Etymology: In honor of P. N. Kolosov.

Holotype: PIN 4874/11

Locality: Left tributary of the Botomoyu River, Teete Creek, middle current of the Vilyui river, Sakha (Yakutia) Republic, Asian Russia.

Horizon:

Biostratigraphy:

Age: Late Jurassic or Early Cretaceous.

Material: Right lower cheek tooth.

Referred material:

Number: Not given: Fragment of the right upper cheek tooth.

Note: The specimens were redeposited in the Quaternary alluvial sand, collected by P. N. Kolosov in 2004.