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