BIGSBY PALEOZOIC BOCKS OF NEW YORK. 



277 



measures. Of the 98 European Goniatites, only 4 reappear in newer 

 strata, 3 of these passing from Lower Devonian into Carboniferous. 

 Barrande is inclined to believe that he has met with this fossil in 

 the Upper Silurian of Bohemia. Ortliocerata are mostly typical, 

 only 12 out of 56 being recurrent ; but 6 enter the Carboniferous 

 system. Niue out of 39 species of European Trilobites (7 genera), 

 chiefly of Devonian origin, have vertical range ; two reach the Car- 

 boniferous rocks, where the family entirely dies out. The following 

 is a List of the species of the Silurian and Devonian fauna which 

 pass into the Carboniferous system : — 



The species occurring in the Lower Silurian Stage in Europe, and 

 found in Carboniferous strata, are — 



Chonetes sarcinulata. Pleurotomaria undulata. 



Pleurotomaria Defrancii. Orthoceras cinctum.— (4.) 



Those of the Up^er Silurian Stage are — 



Gorgonia ripisteria. 

 Rhodocrinites varus. 

 Leptsena membranacea. 



analoga. 



Spirifer crispus. 



octoplicatiis. 



Inoceramus vetustus. 



Erom the Lower Devonian — 



Cyathophyllum flexuosmn. 



quadrigeminum. 



Ceriopora verrucosa ? 

 Syringopora ramulosa. 



reticulata. 



Actinocrinites laevis. 



triacontadactylus. 



Melocrinites Isevis. 



hieroglyphicus. 



Platycrinites depressus. 



pentangularis. 



tuberculatus. 



Pentremites ovalis. 

 Atrypa cuboides. 

 Orthis umbraculum. 

 Productus scabriculiis. 

 Spu'ifer cuspidatus. 



distaus. 



glaber. 



oblatus. 



resupinatus. 



rotundatus. 



subconicus. 



Terebratula acuminata. 



elongata. 



hastata. 



Mantise. 



pugnus. 



Saaguinolaria angustata. 



sulcata. 



Turbo bicarinatus. 

 .Trochus Avanii. 

 Orthoceras Ibex. 



bullatum. 



Calymene concuma. — (14.) 



Terebratula reniformis. 



rhomboidea. 



Pterinea elegans. 

 Pecten linteatus. 



plicatus. 



transversus. 



Cardium aliforme. 



hybemicmn. 



Euomphalus Labadyii. 



Schniuii. 



serpula. 



Buccinum acutum. 



imbricatum. 



Loxonema rugifera. 

 Murchisonia angulata. 



spinosa. 

 taeniata. 



Pleurotomaria delphinuloides. 



limbata. 



m.oni1ifera. 



Bellerophon elegans. 

 Cyrtoceratites armatus. 

 Goniatites expansus. 



serpentinus. 



sphaericu^. 



cylindraceus. 



giganteus. — (55.) 



