CHINA

INNER MONGOLIA (NEI MONGOLIA)

HORIZON 1

YIXIAN FORMATION

JEHOL GROUP

PSITTACOSAURUS FAUNA

CONFUCIUSORNIS AVIFAUNA

VALANGINIAN STAGE

LOWER NEOCOMIAN SUBEPOCH

LOWER EARLY CRETACEOUS SUBEPOCH

EARLY CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

SUBCLASS: LISSAMPHIBIA, HAECKEL, 1866?

SUPERORDER: BATRACHIA BRONGNIART, 1800

ORDER: CAUDATA SCOPOLI, 1777

Incertae sedis

*Jeholotriton paradoxus

CHINA

INNER MONGOLIA (NEI MONGOLIA)

YIKEZHAO LEAGUE

CHIFENG CITY

JIUFUTANG FORMATION

?VALANGINIAN STAGE

MIDDLE NEOCOMIAN SUBEPOCH

LOWER EARLY CRETACEOUS EPOCH

EARLY 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 CHORISTODERA NOVA

ORDER: CHORISTODERA COPE, 1876

Family: SIMOEDOSAURIDAE Lemone, 1884

*Ikechosaurus gaoi