GUADALUPE COUNTY
NEAR SANTA ROSA
LITTLE COLORADO RIVER
BULL CANYON FORMATION
REVUELTIAN
EARLY NORIAN SUBSTAGE
EARLY NORIAN EPOCH
MIDDLE 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
Family: ANGISTORHINIDAE Huene, 1936
Subfamily: PSEUDOPALATINAE, Long & Murry, 1995
Pseudopalatus buceros
= *Rutiodon andersoni
= Machaeroprosopus andersoni