ARIZONA
COCHISE COUNTY
SWISSHEL MOUNTAINS
UALP 7205
BLACK PRINCE LIMESTONE
ONE METER BELOW CONTACT WITH OVERLYING PENNSYLVANIAN HORQUILLA LIMESTONE
LATE MORROWAN OR EARLIEST DERRYAN (EQUIVALENT TO LANGSETTIAN – DUCKMANTIA BOUNDARY)
WESTEPHALIAN
LOWER UPPER SILESIAN
UPPER BASHKRIAN OR LOWER MOSCOVIAN EPOCH
EARLY PENNSYLVANIAN (LATE CARBONIFEROUS)
STEM: TETRAPODA GOODRICH, 1930
_____________________________________________________________________________________SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LEPOSPONDYLI ZITTEL, 1888
Incertae sedis
Gen sp indet.
ORDER: AISTOPODA MIALL, 1875
Family: OPHIDERPETONTIDAE Schwarz, 1908
Incerate sedis
Non Ophiderpeton, *O. swisshelmense
Family: PHLEGETHONTIDAE Cope, 1875
*Phlegethontia phanerhapha
ORDER: NECTRIDEA MIALL, 1875
Incertae sedis
*Arizonerpeton wellsi
Family: UROCORDYLIDAE Lydekker, 1889
Subfamily: UROCORDYLINAE Lydekker, 1889 (sensu Carroll, Bossy, Milner, Andrews & Wellstead, 1998)
? *Ptyonius olisthmonaias
ORDER: MICROSAURIA DAWSON, 1863
SUBORDER: TUDITANOMORPHA CARROLL & GASKILLL, 1978
Family: PANTYLIDAE Case, 1911
Trahystegos megalodon
= *Elfridia bulbidens