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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