WRITINGS OF F. B. MEEK AND A. H. WORTHEN. 41 



43. 



Meek. F. B., and Worthen, A. H. Descriptions of Paleozoic fossils from the Siln- 

 riau, Devonian, and Carboniferous rocks of Illinois and other Western States. 

 <Proc. Chicago Acad. Sci., pp. 11-23. 1866. Chicago, 1866. 



Genera Monoptoria Megaptera afterward republished in the Illinois Geological Reports, 

 vol. ii. 

 Amorphozoa. 



Page. 



Astylospongia ? earbonaria, n. s., M. & W., 1866 11-12 



Astr(eospongia hamiUonensis, u. s., M. <fc W., 1866 12 



Mollusca. 

 Lamellibranchiata. 



Placunopsis earbonaria, n. s., M. & "W., 1866 13 



Aviculopecten randolphensU, n. s., M. &. W., 1866 14 



A. indianensis, n. s., M. & W., 1866 14-15 



A. Jimbriatus, n. 8., M. &. W., 1866 15-16 



Vanuxemia dixonensis, n. s. , M. &, W., 1866 16-17 



Macrodon temdstriatus, u. s. g., M. & W., 1866 17 



Schizodus curtux, n. s., M. & W., 1866 18 



Aiithracoptera ? frag His, n. s., M. & W., 1866 18-19 



Myalina meliniform i^, n. s., M. &W., 1866 19-20 



Monopteria, n. s., g., M. & TV., 1866 20 



Pterinea (Monopteria) gibbosa, n. a., M. & W., 1866 20-21 



Pterinea ? subpapyracea, n. s., M. &. W., 1866 21-22 



Arnbonychia (Megaptera) casei, n. s., M. & W., 1866 22-23 



44. 



Meek, F. B., and Worthex, A. H. Descriptions of Invertebrates from the Carbon- 

 iferous System. <^Geological Survey of Illinois, vol. ii, pp. 145-411, plates, 14-20 

 and 23-32. 1866. Published by authority of the legislature of Illinois, Spring- 

 field, 1866. 



Genera Sphenopotoriuni, Cardiop9is, Trematodiscus, Strotocrinus, Stegaiiocrinus. Cajlocrlnua, 

 Oligoporus, Erisocrinus, Syntrielasma, Enmicrotis, Trachydomia, Orthonenia, Soleniscus, 

 Acanthotel-son, Pala30cari3, Anthracerpes, Palseocainpa, Shsenaster. Volumes ii, iii, v, and vi 

 of these reports all comprise very important works on Invertebrate Paleontology, in which aie 

 not only species and genera described, but higher groups are defined, and many important 

 questions are philosophically discussed. 



INVERTEBRATE FOSSILS OF THE KIXDERHOOK GROUP. 



Protozoa. 

 Spongice. Page. 



* Sphenopoterium, M. & W., 1860 145-146 



S. enorme, M. & W., 1860, pi. siv, figs. 1 a, 1 6 146 



S. enorme var. depressum, M. &, W., 1866, pi. xiv, figs. 2 a, 2 6 146 



Badiata. 

 Echinodermata. 

 Crinoidea. 



Actinocrinug, Miller 147-149 



Batocrinus, Casseday (Eretmocrinus Lyon ?) 150-151 



Subgenus Batocrinus, Casseday 151 



Sec. C. (Vperocrimis, M. & W.) 151 



Actinocrinus (Batocrinus) pistilUforniis, M. & W., 1861, pi. xiv, fig. 8 151-153 



Mollusca. 

 Brachiopoda. 



Rhynchonella, Fischer, 1809 153 



K. missouriensis, Shuraard, 1855, pi. xiv, figs. 4 a, 4 6 153-154 



Spirifer, Sowerby, 1815 155 



Subgenu.s Martinia, McCoy, 1844 155 



iS. (Martinia) cooperensis, Swallow, 1860, pi. xiv, figs. 5 a, 5 & 1 55-156 



<T(t>7iv, a wedge, nonjpiov, a drinking cup. 



