ON THE BORDER BETWEEN STAFFORD AND KING GEORGE COUNTIES
1 M UPSTREAM AND ABOUT 4 M DOWNSTREAM OF THE MOUTH OF THE POTOMIC RIVER
AQUA FORMATION
LATE PALEOCENE EPOCH
LOWER PALEOGENE PERIOD
LOWER TERTIARY SUBERA
CENOZOIC ERA
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
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983
ORDER: EUSUCHIA emend HUXLEY, 1875
INFRAORDER: CROCODYLIA emend GMELIN, 1877
PARVORDER: BREVIROSTRES
Superfamily: CROCODILOIDEA Cuvier, 1807 (sensu Fitzinger, 1826)
Family: CROCODYLIDAE Cuvier, 1807
Subfamily: CROCODYLIDINAE Cuvier, 1807
Incertae sedis
Crocodylus sp