. Athlon : essays on palaeontology in honour of Loris Shano Russell. Paleontology. ROBERT E. SLOAN 141 from previous restorations, is shown in Fig. 1. Silicified coniferous wood is rarely if ever found in the Hell Creek Formation but is relatively common in the Tullock Formation. At least five successive petrified forests, represented by silicified stumps of Metasequoia, are present in the lower half of the Tullock Formation in Section 33 T24N, R44E, in McCone County, Montana. The stumps in these forests have a diameter (breast high) of about 2 to 4 feet (.6 to m), suggest- ing that the Tu
. Athlon : essays on palaeontology in honour of Loris Shano Russell. Paleontology. ROBERT E. SLOAN 141 from previous restorations, is shown in Fig. 1. Silicified coniferous wood is rarely if ever found in the Hell Creek Formation but is relatively common in the Tullock Formation. At least five successive petrified forests, represented by silicified stumps of Metasequoia, are present in the lower half of the Tullock Formation in Section 33 T24N, R44E, in McCone County, Montana. The stumps in these forests have a diameter (breast high) of about 2 to 4 feet (.6 to m), suggest- ing that the Tullock forests had crown heights of some 60 to 120 feet (19 to 37 m). The stumps are rooted in the middle shales of the alluviation cycles of the Tullock. Nearby, in Section 35, T24N, R44E, a series of 32 Metasequoia stumps is exposed, all rooted in the uppermost bed of the W-coalseam of the lower Tullock. Fig. 1 Restoration of the Triceratops community from the Hell Creek Formation of north- eastern Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Churcher, C. S. , 1928-; Russell, Loris Shano, 1904-; Royal Ontario Museum. Toronto : ROM
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Keywords: ., book, bookcentury1900, bookleafnumber153, booksubjectpaleontology
