The geology of Hardin County, and the adjoining part of Pope County . EXPLANATION OF PLATE XI Figs. 1-2. Sulcatopinna missouriensis (Swallow) p. 375 Lateral views of two specimens, neither of which is complete. Menard lime-stone, tributary of Gravel Creek, four miles northeast of Chester, Ran-dolph County, Illinois. Figs. 3-4. Allorisma clavata McChesney p. 377 Lateral views of two specimens. Menard limestone, tributary of Gravel Creek,four miles northwest of Chester, Randolph County, Illinois. Figs. 5-8. Prismopora serrulata Ulrich p. 373 5. View of a well preserved specimen, showing the bran
The geology of Hardin County, and the adjoining part of Pope County . EXPLANATION OF PLATE XI Figs. 1-2. Sulcatopinna missouriensis (Swallow) p. 375 Lateral views of two specimens, neither of which is complete. Menard lime-stone, tributary of Gravel Creek, four miles northeast of Chester, Ran-dolph County, Illinois. Figs. 3-4. Allorisma clavata McChesney p. 377 Lateral views of two specimens. Menard limestone, tributary of Gravel Creek,four miles northwest of Chester, Randolph County, Illinois. Figs. 5-8. Prismopora serrulata Ulrich p. 373 5. View of a well preserved specimen, showing the branching of the Okaw limestone, Plum Creek beds, one mile east of Preston, Ran-dolph County, Views of three fragments of branches. Glen Dean limestone three mileseast of Cloverport, Breckenridge County, Kentucky. Fig. 9. Pterotocrinus menardensis n. sp p. 373 View of a very perfect wing plate, the holotype. Menard limestone, eastof Cobden, Union County, Illinois. Fig. 10. Spirifer increbescens Hall p. 374 Pedicle view of a large specimen. Cl
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeology, bookyear1920
