. The Ceratopsia. Ceratopsia. 176 THE CERATOPSIA. Among the ceratopsian remains mentioned are those of Ceratops and Monoclonius, and it was here, or in this vicinity, that type material referred to Ceratops paucidens Marsh was found, the exact locality being— on the western slope, very near the summit, of a rounded badland hill about 20 rods east of the spring situated about one- quarter of a mile east of thejfreight road running from Judith to Maiden, Mont., * * * about 12 miles from Judith post- office, on the Missouri River. [See this monograph, p. 103.] The type of Ceratops (Monoclonius) r
. The Ceratopsia. Ceratopsia. 176 THE CERATOPSIA. Among the ceratopsian remains mentioned are those of Ceratops and Monoclonius, and it was here, or in this vicinity, that type material referred to Ceratops paucidens Marsh was found, the exact locality being— on the western slope, very near the summit, of a rounded badland hill about 20 rods east of the spring situated about one- quarter of a mile east of thejfreight road running from Judith to Maiden, Mont., * * * about 12 miles from Judith post- office, on the Missouri River. [See this monograph, p. 103.] The type of Ceratops (Monoclonius) recurvicornis Cope was found in a bluff on the north side of Missouri River nearly opposite the mouth of Dog Creek, in Montana. According to Cope the geological horizon was near the base of the Judith River beds as these are represented in this locality. BIRCH CREEK. Birch Creek rises in the Bearpaw Mountains and flows southward, emptying into the Missouri River nearly opposite the mouth of Dog Creek. The walls of the canyon of Birch Creek are composed of Judith River and underlying formations, while the hills on either side of the MHMki. "Fig. 121.—Undisturbed Judith River beds, with overlying Bearpaw shales, on Cow Creek, Montana. After Stanton and Hatcher. The contact is below the pine trees on ridge in middle distance. canyon are formed of the Bearpaw shales. It was from the sandstones near the base of the Judith River beds near the mouth of Birch Creek that Professor Cope, in 1876, secured the type of Monoclonius crassus. The type of Monoclonius splienocerus Cope was found by Charles H. Sternberg on the Missouri River near Cow Island, Montana; level not recorded. COW CREEK. Cow Creek, which yielded the type of Ceratops montanus Marsh, flows south from the Bearpaw Mountains, emptying into the Missouri about 30 miles below Judith post-office. Cow Creek flows in a deep, rugged canyon from a place a short distance below the point where it leaves the Bearpaw Mountains t
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