HUMBOLT COUNTY
SOUTHERN SIDE OF BUFFALO MOUNTIAN
LOWER MEMBER
NATCHEZ PASS FORMATION
EARLY CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: NEODIAPSIDA BENTON, 1985
INFRACLASS: NEODIAPSIDA BENTON, 1985
ORDER: THALATTOSAURIDAE MERRIAM, 1904
SUBORDER: CLARAZISAUROIDEA HOFFSTETTER, 1955
Family: CLARAZIIDAE Peyer, 1936
Genus nova