NEW MEXICO

SAN JUAN COUNTY

ALONG TWO MILE CREEK ON THE EAST SLOPE OF THE LA SAL MOUNTAINS

GRAY DAUN MINE

SALT WASH MEMBER

MORRISON FORMATION

ZONE 2

COMOBLUFFIAN AGE

KIMMERIDGIAN STAGE

UPPERMOST MALM EPOCH

LATE JURASSIC

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

ICHNOCLASS: REPTILIPEDIA VIALOV, 1966

ICHNOSUBCLASS: DIAPSIDIPIDII NOVA

ICHNOSTEM-GROUP: NEODIAPSIDIPEDII NOVA

ICHNOINFRACLASS: NEODIAPSIDIPEDII NOVA

ICHNOSUBDIVISION: ARCHOSAURIPEDIDII NOVA

ICHNOINFRADIVISION: CROCODYLOTARSIPEDIDII NOVA

ICHNOSUPERORDER: CROCODYLOMORPHIPEDIDA WALKER, 1968

Ichnofamily: BATRACHOPOIDIDAE emend Lull, 1904

*Hatcherichnus sanjuanensis

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