84 0. C. Marsh—Classification of the Dinosauria. 
Genera eh stones (Hypsirhophus), Diracodon, and in Kurope 
Omosaurus, Ow 
(2) Family uliionsunie Astragalus not codssified with 
tibia; metatarsals ica four functional digits in pes. 
Known forms all EKuropea 
Genera, Scelidosaurus, Acandhon suk, Crateomus, Hyleosaurus, 
Polacanthus. 
(3.) Order ORNITHOPODA (Bird foot). Herbivorous. 
Feet digitigrade, five functional digits in manus and three in 
pes. Pubes projecting free in front; post-pubis present. Vert- 
ebree solid. Fore limbs small; limb bones hollow.  Pre- 
maxillaries sisttalo ous in front. 
(1.) Family Camptonotide. Clavicles wanting ; post-pubis 
complete. 
Geriers Camptonotus, Laosaurus, Nanosaurus, and in’ Kurope 
Hypsilophodon. 
(2.) Family Jguanodoniide. Clavicles present; post-pubis 
incomplete. Premaxillaries edentulous. Known forms all 
a 
Ficus, Iguanodon, Vectisaurus 
(8.) Family Hadrosauride. Teeth in several rows, forming 
with use a deme lated grinding surface. Anterior vertebrae 
opisthoceelia 
Genera Pigeon us, ? Agathaumas, Cionodon. 
(4.) Order THEROPODA (Beast foot). Carnivorous. 
Feet digitigrade; digits with prabeneue claws. Pubes pro- 
jecting downward, and codssified distally. Vertebre aes or 
less cavernous. Fore limbs very aig limb bones hollow. 
Premaxillaries with teet 
(1.) Family Megalosauride. Vertebree biconcave. Pubes 
slender, and unit istally. areal with ascending pro- 
cess. Five digits in manus and four in pes. 
Genera Megalosaurus (Pinbiloplourdi), from ee Allo- 
saurus, Coelosaurus, Creosaurus, Dryptosaurus (Lelap 
(2.) Family Zanclodontide. Vertebree biconcave. “Epics broad 
elongate plates, with anterior margins united. Astragalus with- 
out ascending PONE five digits in manus and pes. Known 
forms Europe 
Genera eae ? Teratosaurus. 
(3.) Family Amphisauride. nia bicoheara Pubes rod- 
like ; five digits in manus and three in pes. 
Genera Amphisawrus (Meaadatlas, ? Bathygnathus, ? Clepsy- 
saurus ; and in Europe, Paleosaurus, Thecodontosaurus. 
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