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



43. 



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

 rian, 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 iu the Illinoia Geological Keports, 

 vol. ii. 

 Amorphozoa. 



? carbonaria, n. 8.,M. «S: W., 1866 11-12 



Astrceospongia hamiltonensis, n. s., M. & W., 1866 12 



Mollusca. 

 Lamellibranchiata. 



Plaeunopsis carbonaria, n. s., M. & W., 1866 13 



Aviculopecten randolphensig, n. a. , M. & W., 1866 14 



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



A. fimhriatus, n. b., M. &. W., 1866 15-16 



Yanuxemia dixonensia, n. s., M. <fc W., 1866 16-17 



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



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



Anthracoptera ? frag His, u. s., M. & W., 1866 13-19 



Myalina ■melini/onnis, n. s., M. & W., 1866 15^20 



Monopteria, u. s., g., M. & W., 1866 20 



Pterinea (Monopteria) gibbosa, n. 8., M. & W., 1866 20-21 



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



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



44. 



Meek, F. B., and Worthen, A. H. Descriptions of Invertebrates from the Carbou- 

 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 Sphenopoteriuni, Cardiopi^is, Trematodiscug, Strotocrinus, Steganociiuus, Cailociiuus, 

 Oligoporus, Erisocrinus, Syntrielasma, Eumicrotis, Trachydomia, Orthonema, Soleniscua, 

 Acanthotelson, PalsBocaria, Anthracerpea, Paloeocanipa, Shaenaster. Volumes ii, iii, v, and vi 

 of these repoi-ts all comprise very important works on Invertebrate Paleontology, in which are 

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

 questiona are philosophically discussed. 



INVERTEBRATE FOSSILS OF THE KINDERHOOK GROUP. 



Protozoa. 

 Spongice. Page. 



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



S. enorme, M. & W., 1860, pi. xiv, figs. 1 a, 16 146 



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



Radiata. 

 Echinodermata. 

 Crinoidea. 



Actinocrinus, Miller 147-149 



Batocrinus, Casseday (Eretmocrinus Lyon ?) 150-151 



Subgenus Batocrinus, Casseday 151 



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



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



Mollusca. , 



Brachiopoda. 



Rhynchonella, Fischer, 1809 153 



Ii. missouriensis, Shumard, 1855, pi. xiv, figs. 4 «, 4 6 153-154 



Spirifer, Sowerby, 1815 155 



Subgenus Marlinia, McCoy, 1844 155 



S. (Martinia) cooperensis, Swallow, 1860, pi. xiv, flga. 5 a, 5 6 155-156 



<r<j>riv, a wedge, ■KOTiqpioi', a drinking cap. 



