VIRGINA

CHESTER COUNTY

USNM LOCALITY 39981

TOMAHAWK CREEK MEMBER

TURKEY BRANCH FORMATION

NEWARK SUPERGROUP

EARLY TO MIDDLE CARNIAN STAGE

LOWER LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

SUPERLEGION: NEODIAPSIDA BENTON, 1985

LEGION: ARCHOSAUROMORPHA HUENE, 1946

SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990

COHORT: CROCODYLOTARSI BENTON & CLARK, 1988

SUPERORDER: PARASUCHIMORPHA NOVA

ORDER: PARASUCHIA HUXLEY, 1875

Incertae sedis

Genus et sp indet.

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: PSEUDOSUCHIA ZITTEL 1887-1890

Incertae sedis

Uatchitodon kroehleri

Gen. sp indet.

ORDER: AETOSAURIA NICHOLSON & LYDEKKER 1889

Family: STAGONOLEPIDIDAE Lydekker, 1887

Incertae sedis

Gen. sp indet.

SUPERORDER: CROCODYLOMORPHA WALKER, 1968

GRANDORDER: CROCODILIFORMES HAY, 1930

Incertae sedis

*Euscolosuchus olseni