WEST-CENTAL ALASKA

YUKON-KOYUKUK BASIN

EXPOSED ALONG TEH YUKIN RIVER

KS UNIT

LATE ALBIAN STAGE

MIDDLE GALLIC SUBEPOCH

UPPER EARLY CRETACEOUS EPOCH

EARLY CRETACEOUS-CENOMANIAN STAGE

UPPERMIDDLE GALLIC SUBEPOCH

LOWERMOST GULF EPOCH

LATE CRETACEOUS

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

INCHNOCLASS: AVIPEDIA VIALOV, 1966

Incertae sedis

Archaeornithipus isp

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