. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 225 Eris. Erisocrinus ? in Decker's creek shale under Maho- ning sandstone, at Morgantown, W. Va. in Fayette Co. coal measures (L, 36; KKK, 309).—X//Z Erithizon cloacinum, Cope. Proc. A. P. S. 1871, p. 93, fig. 19, nat. size, found in the Port Kennedy cave, Chester Co., Pa. Post-tertiary (Pre-glacial ? Post-glacial?). Escharopora recta. Hall, Pal. N. Y. Vol. 1, Trenton; found by C. E. Hall, at Tyrone forges, Huntingdon Co. (00, p. 232). Specimens 212-2 {
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 225 Eris. Erisocrinus ? in Decker's creek shale under Maho- ning sandstone, at Morgantown, W. Va. in Fayette Co. coal measures (L, 36; KKK, 309).—X//Z Erithizon cloacinum, Cope. Proc. A. P. S. 1871, p. 93, fig. 19, nat. size, found in the Port Kennedy cave, Chester Co., Pa. Post-tertiary (Pre-glacial ? Post-glacial?). Escharopora recta. Hall, Pal. N. Y. Vol. 1, Trenton; found by C. E. Hall, at Tyrone forges, Huntingdon Co. (00, p. 232). Specimens 212-2 {a) poor fragments; 212-3 {h) frag- ments in fair condition; 211-7 (a) good specimens; 211-8 (eleven specimens).— Trentoyi^ IIc. See Appendix, Estheria, See Posidonia. VIII. Estheria ? See figures, natural size, and magniiied to show sculpture, under Leperditia okeni, XI, Ethmophyllum minganense. Walcott. Bulletin, U. S. G. Uo(- S , No. 30, p. 77; wood cut, fig. 6, is a speci- men of this cyath o- phylloid sponge fig- ured by Billings as ArcheeoGy- athusmin- ganensis; figure 7, a piece of Walcott the surface enlargecl to show the pores; fig. 8, the needles (spiculge) enlarged fifty times. (Fig. 2, on Walcott's plate 4 (described page 87), is a diagrammatic vertical section through the center on the line of the septa, to show the writer's view of the poriferous system. If the outer wall is removed, the large pores on the line of the septum would be shown as in fig. 1, pi. 4, and fig. 2, pi. 5. The inner wall is perforated by smaller openings, and fewer of them, than the outer ; L^wer Camhrian. L. (Z 15. 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 Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for t
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