FOSSILS OF THE TRENTON PERIOD. 

 Fossils of the Trenton Period — continued. 



321 



Gbneka ANT) Species. 



CORALS — con. 



Stellipora, n. sp 



Alveolites, n. sp 



Dekayi, sp. res. D. aspera 



Streptelasma (Petraia) oorniculum . . . , 



S. (Zaphrentis) multilamellosum . 



S. prolundum 



S. und. sp 



Coluirmaria alveolata 



C. imd. sp 



Zaphrentis, und. sp 



Coral resemb. Calceola 



Favosites, 



Comuliies-like tubes, gen. and sp. und. 



CRINOIDEA. 



Schizocrinus nodosus 



Poteriocrinus, und. sp 



Cyathoorinus, n. sp. ? 



Homoorinus, und. sp 



Lidienocrinus, sp. ? 



Crinoids, gen. and sp. und. 



CYSTID^A- 



Pleurocystites squamosus? 

 Glyptooystites Logani, . . . . 



pa 



S. 



s. 

 s. 



s. 



BRYOZOANS. 



Trematopora sp. res. GOTgonia perantiqua . 



T. new and und. species 



Stiotopora elegantula 



S. fragiUs • 



ramosa 



n. sp. No. 1 



n. sp. No. 2 



n. sp. No. 3 



Ptilodictya recta 



P. und. species 



Clathropora flabeUata 



Callopora und. sp 



Fencstella, und. sp 



Retepora, und. sp 



Alecto inflata. ; 



Aulopora aracknoidea — 



Helopora, und. sp 



Paleschara? und. sp 



BRACHIOPODA. 



Lrngula altemata 



L. maquoketa 



L. quadrata 



Wis. Sue. — 21 



m 



m 





-a 



13 



eg 



o 





•3 



o 



