MONGOLIA
TRANS-ALTAI GOBI
NOGOON TSAV
NEMEGT SVITA
LOWER MAASTRICHTIAN STAGE
LOWER SENONIAN SUBEPOCH
LOWER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
COHORT: CROCODYLOTARSI BENTON & CLARK, 1988
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983
ORDER: MESOSUCHIA EMEND HUXLEY, 1875
PARVORDER: METASUCHIA BENTON & CLARK, 1988
INFRAORDER: METAMESOSUCHIA HULKE, 1878
NEOSUCHIA CLARK, IN BENTON & CLARK, 1988
Family: PARALLIGAOTRIDAE Konjukova, 1954
*Shamosuchus tersus
CLASS: AVES LINNAEUS, 1758
SUBCLASS: SAURORNITHES NICHOLSON, 1879
AVEBREVICAUDA PAUL, 2001
INFRACLASS: ORNITHOTHORACES NOVA
LEGION: ORNITHURAE NOVA
COHORT: ENANTIORNITHES NOVA
SUPERORDER: EUENANTIORNITHES CHIAPPE, 2002
ORDER: ALEXORNITHIFORMES BRODKORB, 1976
Family: ALEXORNITHIDAE Brodkorb, 1976
Gen. sp indet.
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