TEXAS

QUAY COUNTY

RED PEAK

APACHE CANYON

REDONDA FORMATION

APACHEAN

RHAETIAN

LATE NORIAN STAGE

LATE TRIASSIC EPOCH

LATE 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

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: PSEUDOSUCHIA ZITTEL 1887-1890

GRANDORDER: RAUISUCHIFORMES PARRISH, 1993

ORDER: AETOSAURIA NICHOLSON & LYDEKKER, 1889

Family: STAGONOLEPIDIDAE Lydekker, 1887

Subfamily: DESMATOSUCHINAE Huene, 1942

Typothorax coccinarum
Typothorax sp