CHINA

HEBEI PROVINCE

WEICHANG COUNTY

DAOBAZILIANG

HUAIJIYING FORMATION (EQUIVALENT TO THE YIXIAN FORMATION OF THE JEHOL GROUP)

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

*Regalerpeton weichangensis

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CHINA

HEBEI PROVINCE

WEICHANG COUNTY

SHIXIA

DABEIGOU FORMATION

JEHOL GROUP

BARREMIAN STAGE

LOWER GALLIC SUBEPOCH

MIDDLE EARLY CRETACEOUS SUBEPOCH

EARLY CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AVES LINNAEUS, 1758

SUBCLASS: SAURORNITHES NICHOLSON, 1879

PYGOSTYLIA CHIAPPE 2002

ORDER: INCERTAE SEDIS

Family: JINGUOFORTISIDAE Wang, Stidham & Zhou, 2018

*Jinguofortis perplexus

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