The geology of Hardin County, and the adjoining part of Pope County . 24 nif ^^O; 20 21 22 19 25 I I 26 27 28 29 30. 32 EXPLANATION OF PLATE VIII Figs. 1-4. Pugxoides ottumwa (White) p. 351 1-2. Brachial and pedicle views of one specimen. Ste. Genevieve limestone, near mouth of River aux Vases, Ste. Genevieve County, Similar views of another specimen, Fredonia limestone, Rosiclare, Hardin County, Illinois. Figs. 5-6. Rhipidomella dubia (Hall) p. 351 Brachial and pedicle views of two specimens. Fredonia limestone, Rosiclare,Illinois. This species is a common one in the Mississippi
The geology of Hardin County, and the adjoining part of Pope County . 24 nif ^^O; 20 21 22 19 25 I I 26 27 28 29 30. 32 EXPLANATION OF PLATE VIII Figs. 1-4. Pugxoides ottumwa (White) p. 351 1-2. Brachial and pedicle views of one specimen. Ste. Genevieve limestone, near mouth of River aux Vases, Ste. Genevieve County, Similar views of another specimen, Fredonia limestone, Rosiclare, Hardin County, Illinois. Figs. 5-6. Rhipidomella dubia (Hall) p. 351 Brachial and pedicle views of two specimens. Fredonia limestone, Rosiclare,Illinois. This species is a common one in the Mississippian formations fromthe Keokuk to the Ste. Genevieve, but neither the species nor the genushas been observed in any of the Chester formations of Illinois. Figs. 7-14. Spiriferixa subspixosa n. sp p. 352 Pedicle and brachial views of four different specimens exhibiting range in Shetlerville formation, four miles west of Marion, Crittenden County, Shetlerville formation, Fairview bluff, Hardin County, Illinois. Figs. 15-16. Spiriferixa spixosa (Norwood and Pratten) p. 353 15. Brachial vie
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeology, bookyear1920
