I 
i 
! 
I! 
! 
Anthracotheriidae.Hippopot¬ 
ami dae , Achaeno dont i dae., 
Entelodontidae;Dicotylidae, 
Suidae* . 
Suborder Ruminantia (Auct) 
fam^Camelidae,Oreodontidae 
Anoplqtheriidae^Hypertrag- ! 
ulidae, Tragulid'ae ,CGrTidae, I 
Merycodontidae,Antilocapridae 
Giraffidae,Bovidae. 
Superorder . Bnguiata x 
or. PROTQRGULATA (auct) . 
so. laligrada (Cope) Osborn 
fam.Periptycbidae ^ Pantolamb- 
didae. 
so. Condylarthra (Cope) 
fam.Meniscotheriidae ^Phenaco- 
dontidae. 
or. AMBLYPOPA Cope 
fam. Gor 3 ^hodontidae,Uin¬ 
ta theriidae. 
or. BARYTHERIA Andrews 
or. SIREBIA Illiger 
or. PROBOSCIPEA Illiger, 
or. HYRACES Wagler 
or. EMBRITHOPOPA Andrews 
or. HOTOUHGDIATA (Roth)Scot 
so, Homalodotheria (Scott) 
fam.?Rotostylopidae,?Hen- 
ricosbornidae ,Homalodother-| 
iidae. 
so. Astrapotheria 
fam.? Albertogaudryidae,? ^ 
Isotemnidae,Astrapotheriida 
so. Toxodontia Owen 
fam.Resodontidae,Toxodont- 
idae,Archaeohyracidae, 
Protypotheriidae,Inter^ 
atheriidae,Typotheriida 
?sqi*u Pyrotheria 
fam. Pyrotheriidae 
so. Litopterna (Ameghino) 
fam.Proterotberiidae ^ 
Macraucheriidae. 
or. MESAXORIA (Marsh) 
so. Perissodactyla Owen 
so. Ancylopoda Cope 
Superorder. Cetacea Linn, 
or. ZBUGLOPORTIA Gill 
or. OPORTOCETI (Gray) 
or. MYSTACOCETI (Gray) 
