. Maryland geological survey. DINOSAURIA. PLATE XIX. PAGE Figs. 1-4. Pi^uRoccELus ALTUS Marsh 200 1. Metatarsal. X %. Near Muirkirk. (5687 U. S. N. M.) 2. Middle caudal vertebra, front view. X Vs- Near Muirkirk. (5626 U. S. N. M.) 3. Same, side view. 4. Outer and side view of tooth. Natural size. Near Muirkirk. (3333 G. C.) (After Marsh.) Fig. 5. AsTRODON JOHNSTONi Leidy. Outer, side, and inner views of tooth. Natural size. Bladensburg. (798 Yale Mus.) (After Marsh.). 202 Figs. 6, 7. Dryosaukus grandis Lull 204 6. Astragalus, front view. X %. Near Muirkirk. (5652 U. S. N. M.) 7. Metatarsals, f

. Maryland geological survey. DINOSAURIA. PLATE XIX. PAGE Figs. 1-4. Pi^uRoccELus ALTUS Marsh 200 1. Metatarsal. X %. Near Muirkirk. (5687 U. S. N. M.) 2. Middle caudal vertebra, front view. X Vs- Near Muirkirk. (5626 U. S. N. M.) 3. Same, side view. 4. Outer and side view of tooth. Natural size. Near Muirkirk. (3333 G. C.) (After Marsh.) Fig. 5. AsTRODON JOHNSTONi Leidy. Outer, side, and inner views of tooth. Natural size. Bladensburg. (798 Yale Mus.) (After Marsh.). 202 Figs. 6, 7. Dryosaukus grandis Lull 204 6. Astragalus, front view. X %. Near Muirkirk. (5652 U. S. N. M.) 7. Metatarsals, f Stock Photo

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. Maryland geological survey. DINOSAURIA. PLATE XIX. PAGE Figs. 1-4. Pi^uRoccELus ALTUS Marsh 200 1. Metatarsal. X %. Near Muirkirk. (5687 U. S. N. M.) 2. Middle caudal vertebra, front view. X Vs- Near Muirkirk. (5626 U. S. N. M.) 3. Same, side view. 4. Outer and side view of tooth. Natural size. Near Muirkirk. (3333 G. C.) (After Marsh.) Fig. 5. AsTRODON JOHNSTONi Leidy. Outer, side, and inner views of tooth. Natural size. Bladensburg. (798 Yale Mus.) (After Marsh.). 202 Figs. 6, 7. Dryosaukus grandis Lull 204 6. Astragalus, front view. X %. Near Muirkirk. (5652 U. S. N. M.) 7. Metatarsals, front view. X V2. Near Muirkirk. (5684, 5704 U. S. N. M.) . 518 MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE XIX..

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RM2CETREY–. Maryland geological survey. DINOSAURIA, PLATE XII. Restoration of a Theropod (carnivorous) dinosaur Ceratosaurus from theMorrison formation of Colorado, an ally of the Arundel form Allosau7-us.1/30 natural size. (After Marsh.) MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE XII.. DINOSAURIA. PLATE XIII. Restoration of a Predentate (herbivorous) dinosaur Laosauriis from theMorrison formation of Wyoming, a near ally of the Arundel form Dryo-saurus. 1/10 natural size. (After Marsh.) 512 MARYLAND GEOLOGICAL SURVEY. LOWER CRETACEOUS, PLATE XIII

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