MONGOLIA
BAYANKHONGOR AIMAG
NORTH OF TSETSEN UUL MOUNTAIN
HOLBOTU-GOL SOUTH OF BOON TSAGA NUUR
KHOLBOOT (HOLBOTU)
KHOORILT LAYERS
ANDAIKHUDAG FORMATION
UPPER HAUTERIVIAN STAGE
UPPER NEOCOMIAN SUBEPOCH-LOWER BARREMAIN STAG
LOWER GALLIC SUBEPOCH
LOWER EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AVES LINNAEUS, 1758
SUBCLASS: SAURORNITHES NICHOLSON, 1879
AVEBREVICAUDA PAUL, 2001
INFRACLASS: ORNITHOTHORACES NOVA
LEGION: ORNITHURAE NOVA
COHORT: ENANTIORNITHES NOVA
Incertae sedis
*Holbotia ponomarenkoi
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MONGOLIA
BAYANKHONGOR
BAYAN-TSAGAN-ULA
UNDURUKHINSKAYA FORMATION
BARREMIAN/APTIAN STAGE
GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AVES LINNAEUS, 1758
SUBCLASS: SAURORNITHES NICHOLSON, 1879
AVEBREVICAUDA PAUL, 2001
INFRACLASS: ORNITHOTHORACES NOVA
LEGION: ORNITHURAE NOVA
COHORT: ENANTIORNITHES NOVA
SUPERORDER: EUENANTIORNITHES CHIAPPE, 2002
Incertae sedis
Gen. sp indet.
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MONGOLIA
BAYANKHONGOR AIMAG
CENTRAL MONGOLIAN ALTAI MOUNTAINS
KHURILT-ULAN-BULAK
BOONTSAGAAN GORIZONT
?BARREMIAN STAGE
GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AVES LINNAEUS, 1758
AVEBREVICAUDA PAUL, 2001
SUBCLASS: CARINATE MERREM, 1813
INFRACLASS: NEORNITHES GADOW, 1893
MAGNORDER: PALAEOGNATHAE NOVA
ORDER: AMBIORTIFORMES KUROCHKIN, 1982
Family: AMBIORTIDAE Kurochkin, 1982
*Ambiortus dementjevi
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